Terms of service

These Terms of Service (“Terms”) govern your use of Tsumagoi Work&Camp — the reservation and stay services (camping, car stay, office day-pass, private events, and related rentals) at 1,444 m in Tsumagoi, Gunma — together with our website, IoT dashboard, and LINE Official Account (collectively, the “Service”), operated by Kensaurus LLC (“we”, “us”). By booking a stay or using the Service, you agree to these Terms.

• Reservations are made through the Reservations page; a booking is confirmed only once payment is completed.
• Prices are those shown on the Reservations page at the time of booking (per-person for camping, per-vehicle for Stopover, and any long-stay discount) and include consumption tax.
• Payment is by credit card (processed by Stripe) or PayPay, charged in full at the time of booking.
• Check-in is available Thursday through Monday after 12:00 (a Tuesday or Wednesday arrival is by prior arrangement); check-out is by 11:00. Reservations cover stays from 8 August 2026 onward.
• We are not a licensed lodging (旅館業) operator: tents and equipment are rentals for self-pitch site use, not staffed accommodation.

• No new passes have been issued since 3 October 2026. Passes and Field Logs already issued remain valid under the terms below.
• “The First 100 at 1,444 m” is a launch-period stay benefit: the first 100 unique primary contacts whose paid camping reservation reaches payment success receive a numbered digital pass and a post-stay Field Log of aggregate conditions near 1,444 m.
• It is not a membership and grants none of the Founding Member lifetime discounts or other membership perks. It has no cash value and is not an extra rate discount.
• Eligibility is determined at payment confirmation. Reviews, posts, or referrals are never required. Cancelled or refunded claims retire their number without reuse. The campaign ends at 100 claims or 31 December 2026.

Cancellations are made from the Reservations page or by contacting us. Refunds depend on the date of cancellation relative to your check-in date:

• 7 or more days before: full refund
• 4–6 days before: 70% refund
• 2–3 days before: 50% refund
• Day before, day of check-in, or no-show: no refund

Weather & disaster

• Ordinary rain, snow, or wind — or an advisory (注意報) alone — is not grounds for a refund. If we are open and you cancel, the standard fee above applies.
• We waive the fee (full refund or a free date change) only when we suspend operations: the JMA issues a warning (警報 — heavy rain, storm, snowstorm, heavy snow, or flood) for the Tsumagoi area, the site is inside a typhoon storm-warning zone, a disaster or public-transit stoppage occurs, or we close the site for safety. Warnings for your departure area do not qualify.
• No refund for leaving mid-stay after check-in. For multi-night stays, nights after the weather clears remain subject to the standard fee.

Payment-processing fees may be non-refundable.

While on site you agree to follow our posted Campground Rules and the host's instructions, including quiet hours, responsible fire and stove use, carry-out or paid-bag sorting of all waste (Article 8), supervision of pets, and respect for other guests, livestock, and the natural environment. In particular:

• Quiet hours are 22:00–08:00 on Open Days. Lights down, voices below what the next tent can hear, and no music, speakers, or generators. Showers also close at 22:00 (toilets stay open 24h). Quiet hours do not apply on full-venue charter days.
• No smoking anywhere indoors (heated tobacco and vapes included). Outdoors, smoke by the ash cans or use a portable ashtray.
• Nobody sleeps indoors. No sleeping in the Kotatsu Lounge either. Sleeping happens in a tent (All-in Camp or Field only) or inside your vehicle in the big carpark on a Stopover booking (we tell you where to park before you arrive). A Car Stay (Stopover) booking does not include pitching a tent — tents require an All-in Camp or Field only booking.
• The Kotatsu Lounge (24 hours) is part of the All-in Camp (booked as Work&Camp); Field only and Car Stay guests may add it for ¥2,000 per person per night, 9:00–21:00 (showers ¥500 per session, paid on site).
• Our water is well water. It passed the official 11-item water-quality test on 8 Aug 2026 (Gunma Analysis Center, certificate No. B00907), so it is safe to drink. It is a well, so never leave taps running.
• The field and car park are unlit. After dark, drive slowly on the grounds with headlights on.
• Entry is limited to the booking party as declared at booking; bookings may not be resold or transferred (undeclared companions are subject to the additional charge in Article 8).
• Check-out is by 11:00. Staying past that time may result in being asked to leave and in charges for the actual costs incurred.

Enforcement (warnings & removal)

If you breach this Article, Article 6, or the posted rules, we will first warn you and ask you to correct the behavior. If it continues after a warning, we may terminate the use agreement and ask you to leave; in that case no fees are refunded, including for unused nights.

For any of the following serious violations we terminate the use agreement and require you to leave immediately, without a prior warning and without refund:

• Open fires outside designated equipment (fire stands), any fire in posted no-fire zones, or other conduct creating a fire hazard
• Continuing quiet-hours noise after a warning
• Endangering the life or body of other guests, the host, livestock, or wildlife; violence, intimidation, or harassment
• Refusing to follow the host's safety instructions
• Illegal acts

Removal does not release you from compensation under Article 8 for damage your conduct has caused to us or to third parties.

View printable campground rules & site map →

• For danger to life or body, fire, or crime, call 119 (fire/ambulance) or 110 (police) first. After calling, please also tell the host on LINE (@012pteqb) when you can.
• The host answers LINE on a best-effort basis at night and while the host is away — there are times when the host is not on site, so an immediate response is not guaranteed. LINE is never a substitute for the 119 / 110 emergency lines.
• The nearest 24-hour emergency hospital is 西吾妻福祉病院 (0279-83-7111). The village clinic (嬬恋村国民健康保険診療所, 0279-97-3020) is weekday daytime only, with no emergency service.
• In the event of an incident or accident we notify and cooperate with the police, fire department, and the Tsumagoi Village authorities. Emergency contacts are also posted on site and included in the check-in guide.

• The website, IoT dashboard, and LINE account are provided to support your stay and are offered on an as-is basis.
• User-generated content (e.g. board posts) is subject to approval and may be removed.

• Violations of law or public order
• Harassment of other users
• Smoking indoors (heated tobacco and vapes included), or any fire or smoking in posted no-fire zones
• Connecting high-draw appliances (heaters, hair dryers, personal cooking appliances, etc.) to building outlets without our consent (Article 15)
• Reselling or transferring a booking, or bringing in persons not declared at booking
• Posting false information
• Interfering with service operations
• Spam activities

Outdoor stays on a working ranch at 1,444 m carry inherent risks — sudden weather changes, terrain, temperature swings, use of fire and equipment, livestock and wild animals (including bears), insects (bees, horseflies, blackflies), and driving on unpaved ground. You understand these risks, take part at your own responsibility, and are responsible for the safety of yourself and your party (including minors, elderly, pregnant, or unwell members). We strongly recommend appropriate accident/travel insurance.

Non-potable water (for showers/cooking), fire, rental equipment, the coworking environment, and any information (weather data, camera feeds, availability) are provided as-is and for reference only; we do not warrant their accuracy, completeness, or fitness for a particular purpose.

Water on site comes from a mountain well and power from a rural distribution grid. Guest overuse (running taps, long showers, exceeding declared headcount, connecting high-draw appliances) or natural conditions can cause outages, cloudy water, blackouts, momentary interruptions, or voltage fluctuations. Except in cases of our willful misconduct or gross negligence, we are not liable for resulting loss — including damage to equipment you bring (power details in Article 15).

Limitation of liability

Only for our ordinary negligence (excluding gross negligence), our liability for breach of contract or in tort is limited to the direct, ordinary damages actually incurred, capped at the amount you actually paid for the relevant booking. We are not liable for lost profits or other indirect, special, or consequential damages. This cap and the exclusions above do not apply to damages caused by our willful misconduct or gross negligence, or to any liability that cannot be excluded or limited under Japanese law (such as liability for death or personal injury).

We are not liable for loss or injury arising from causes not attributable to us, including natural disasters, fire, theft, disputes between guests, accidents or injury involving wildlife, livestock, or insects, and failures of facilities, equipment, or communications (except where such failure is attributable to us). A failure caused by our own negligence in maintaining the facilities is outside this exclusion and is governed by the Limitation of liability above.

• If your willful act or negligence damages our facilities, equipment, rental items, livestock, or the natural environment, or harms a third party or another guest, you shall compensate us or the injured party. Damages for soiling, breakage, or loss are based on actual loss at the time of the incident (fair market / depreciated value) or the reasonable cost of restoration — not the original purchase price. We do not treat any fixed “forfeit the whole deposit” amount as a predetermined damages penalty.
• Where we hold a refundable deposit on rental gear, that deposit is applied against any damages claimed; any shortfall is billed separately. If there is no damage, or damage is less than the deposit, we refund the balance after check-in/out settlement. The deposit amount is not a cap on your liability for actual damages.
• Return all rental gear (tents, power, heating, fire pits, BBQ, cookware, etc.) clean — wipe off grease, ash, food residue, and mud. If an item is returned dirty or heavily soiled, we charge a flat cleaning fee of ¥2,000 (tax included) in addition to any actual restoration cost. This cleaning fee is a fixed charge for cleaning labor, not a predetermined damages penalty. Breakage or loss is billed separately at actual cost.
• The bear spray rental (¥500 a night) is not refunded, used or not. A can that has been sprayed even once (a test spray included) is sold to you at ¥5,500 (tax included), charged in addition to the rental. This is the sale price of the can, not a predetermined damages penalty; the sprayed can is yours to keep.
• Leave your site and the shared facilities (toilets, showers, kitchen, office, minimart) in the condition you found them by check-out. Shared items (kitchen tools, carts, tools, fire extinguishers) go back to their original place, in their original state after use. Soiling beyond normal use — vomit, grease, tracked-in mud, blocked drains, and the like — is billed at the actual cost of cleaning and restoration.
• Dispose of waste per the campground rules: carry it out, or sort it per stream (burnable / cans / glass) into official Tsumagoi Village rubbish bags ¥100 each from the shop, plus a disposal fee of ¥500/bag. Mixed bags cannot be collected. Rubbish left behind, buried, dumped, or left unsorted is billed at the actual cost of collection, sorting, and haulage — minimum ¥15,000 per party.
• If companions not declared at booking are found on site, we charge the applicable stay rate for those persons plus a published surcharge of ¥8,000 (tax included) per undeclared person per night. This is a listed fee in these Terms, not a predetermined damages penalty (for charter events, the organizer responsibility in this Article and the contract band step-up apply instead).
• Open fires directly on grass or bare ground are prohibited. Scorch marks, digging, chemical die-off, or other damage to the lawn or ground (e.g. from not using a fire stand) is billed at the actual cost of restoration, including re-turfing.
• For charter events and corporate bookings, the organizer (the booking party) bears the responsibilities of this Article for the conduct of all participants and must return the venue to its original condition by the end of the booked period. Removal of structures, decorations, or equipment left behind, and any venue cleaning or restoration, is billed to the organizer at actual cost.
• You are responsible for the conduct of your companions, any minors, and pets in your party. Minors must use the Service with a guardian's consent and supervision. Pet owners must control their animals and prevent harm to other guests, livestock, and wildlife.
• A 4WD may enter the camp field and park beside the guest's pitch, entirely at your own risk (owner ruling 2026-10-27, ADR 0148). If stuck, call your own JAF — we do not tow and are not liable. Vehicles other than 4WD use the big carpark. Sleeping in a tent on the field is Camp price.

We do not take custody of your cash, valuables, belongings, vehicles, or their contents; you manage these at your own responsibility. Except in cases of our willful misconduct or gross negligence, we are not liable for their loss, theft, or damage on the premises. The car park is provided as space only; we do not guard or take custody of vehicles. Lost property is held for a limited period and may be disposed of or handed to the police in accordance with law where the owner is unknown.

The grounds and the approach road are unpaved pasture. Drive at walking pace on site, at your own judgment and responsibility. We inspect and sweep the grounds regularly (collecting pegs and other hardware), but objects in the ground (tent pegs, hardware, stones, branches) and terrain conditions (ruts, mud, slopes, ice) can never be fully eliminated. Except in cases of our willful misconduct or gross negligence, we are not liable for tyre punctures or other vehicle damage arising from ground conditions or from objects left behind by third parties. If you spot a peg or other hazard on the grounds, please don't leave it there — tell the host.

We are not liable for any failure to provide all or part of the Service due to events beyond our reasonable control (force majeure), including earthquakes, typhoons, heavy rain, lightning, and heavy snow and other natural disasters, weather warnings, epidemics, fire, power or water outages, communications/internet failures, suspension of public transport, and governmental requests or orders. Where we cannot provide a confirmed booking, we will issue a full refund or a reschedule to another date (including the weather & disaster handling in Article 3). Outages caused by guest overuse are not force majeure — they are governed by Articles 7 and 15.

You represent and warrant that you are not, and have no relationship with, organized-crime groups or other anti-social forces (暴力団 and related persons or entities). If you are found to belong to such forces, or engage in violent or coercive demands, unreasonable demands beyond legal responsibility, or acts that harm our reputation or obstruct our operations, we may cancel the booking or use agreement without notice and without refund.

• The AI chat “Kenji” provides general information to make guidance more convenient; we do not warrant the accuracy, completeness, or timeliness of its answers. For confirmed information on bookings, prices, availability, and cancellations, the reservation system and these Terms prevail.
• AI answers are not a legally binding offer, acceptance, or guarantee by us. Do not rely on AI answers alone for safety-, medical-, or legal-related decisions; confirm important matters on the Reservations page or via LINE.
• Messages you send in chat are processed by a third-party AI provider (which may be outside Japan) to generate responses. See our Privacy Policy for details, and please avoid entering sensitive personal data or another person's personal information.

We may change or suspend parts of the Service. Where we cannot provide a confirmed booking, we will either honor it or refund it.

When using our LINE Official Account (@012pteqb), the terms of LY Corporation (LINE) also apply.

• Charging phones, laptops, and similar devices is free at the building outlets.
• Electric space heaters, hair dryers, personal cooking appliances, and other high-draw equipment may not be connected to building outlets without our prior consent. The owner-installed BougeRV FF diesel heater (fan/ignition only; official start 150 W / run 10–60 W) is approved. Paid AC is the two pump-room spots (published nightly fee; cap 2). Camp and Stopover may buy it. Bays have no dedicated pedestal; park where a 20 m+ outdoor cord reaches the pump-room wall. It is not inside the stay rate. Our electricity comes from a rural mountain grid, and the building's own operation (refrigeration, the pump room, networking) takes priority.
• Event sound, lighting, and cooking power draw from our designated exterior circuits within the published Power Budget (provisionally 2.0 kW). Loads above it run on a very-low-noise inverter generator we approve in advance. We do not rent a production battery.
• If a branch breaker trips, you may reset it once. If it trips again or shows an earth-leakage warning, do not touch it — contact us.
• Except in cases of our willful misconduct or gross negligence, we are not liable for damage to your equipment or data caused by grid outages, momentary interruptions, voltage fluctuations, or breaker operation. Equipment damage and inspection costs caused by unauthorized high-draw connections are billed at actual cost.
• EV charging is not offered.

These Terms are governed by the laws of Japan. Any dispute arising from the Service or a stay shall be subject to the exclusive jurisdiction of the district court for our registered head office (currently the Tokyo District Court) as the court of first instance.

Seller

Kensaurus LLC (ｋｅｎｓａｕｒｕｓ合同会社)

Corporate number

5011003021894

Invoice registration no.

T5011003021894

Representative

Kenji Sakuramoto (櫻元 賢次)

Address

Shibuya Dogenzaka Tokyu Bldg. 2F-C, 1-10-8 Dogenzaka, Shibuya-ku, Tokyo 150-0043, Japan

Venue

2401-615 Hoshimata, Tsumagoi, Agatsuma District, Gunma 377-1611, Japan

Phone

Disclosed without delay on request (contact: LINE @012pteqb or email kensaurus@gmail.com)

Email

kensaurus@gmail.com

Website

tsumagoi.kensaur.us

Price

As shown on each Reservations page (tax included)

Additional fees

Payment-processing fees; on-site purchases are pay-as-you-go

Payment methods

Credit card (Stripe) and PayPay

Payment timing

In full at the time of booking

Service timing

Your reserved stay dates (from 8 August 2026)

Cancellation & refund

Full 7+ days · 70% at 4–6 days · 50% at 2–3 days · none the day before / same day / no-show. Full refund / reschedule if we close for a JMA warning or disaster

Event tickets

Price as shown on each event listing (Peatix, Luma), tax included. Paid through that service at purchase (on Luma, when approved). Provided as admission on the event day. If we call an event off (too few bookings, or the weather), you choose a full refund or a free bonfire night instead. Your own cancellation is accepted until the deadline on the listing; no refund after it