Hotel New Otani Makuhari is offering a new mystery-solving stay plan, "Mystery-Solving Stay Plan – Detective Aotsuki Tan's Holiday Case Files," available for a limited time through September 30 (Wednesday), 2026. It is the sixth installment in a series that began in 2021.
A Hotel-Wide Mystery Game Combining Puzzle-Solving and Deduction
Mystery-solving games, where players work through puzzles using logic and intuition rather than specialized knowledge, are popular with people of all ages. Hotel New Otani Makuhari's mystery-solving stay plan has drawn more than 700 guests over about a year, earning a warm reception across generations. A new installment of the series has now arrived, featuring a hotel-wide mystery game in which guests search for hidden clues scattered throughout the guest rooms and other parts of the hotel to uncover the truth.
This time, three short stories are included, and guests can solve them in any order. The stories also add an element of deduction for a more suspenseful experience, culminating in an ending that feels like reading a novel.
Guests can enjoy an evolved mystery-solving game that combines "inspiration" to solve puzzles with "logic" to deduce the truth.
Story: "Detective Aotsuki Tan's Holiday Case Files"
As the assistant of detective Aotsuki Tan, you visit Hotel New Otani Makuhari to spend a day off together.
The plan was to enjoy a holiday at the hotel with a garden barbecue, the pool, restaurants, and the fitness club. But trouble arises in various parts of the hotel, and you and Aotsuki Tan find yourselves taking on one request after another.
Find out what happens to you and Aotsuki Tan as you solve the mysteries.
Recharge the Next Morning With a Breakfast Buffet
Guests on the plan that includes breakfast can enjoy the morning buffet at the all-day dining restaurant "SATSUKI." Themed around a breakfast that savors the blessings of Chiba, the buffet features dishes such as rice balls made with Chiba-grown roasted seaweed and items inspired by the local Takeoka-style ramen, showcasing the appeal of the prefecture. Guests can recharge with breakfast before returning to the mystery-solving game, or savor a satisfying breakfast the next morning after finishing the puzzles the night before.
More about the SATSUKI Breakfast Buffet
https://www.newotani.co.jp/makuhari/restaurant/satsuki/breakfast-buffet/
Plan Overview
Hotel New Otani Makuhari
Stay Plan
"Mystery-Solving Stay Plan – Detective Aotsuki Tan's Holiday Case Files"
https://www.newotani.co.jp/makuhari/stay/plan/mystery-solving/
| Item | Details |
|---|---|
| Period | Through September 30 (Wed), 2026 |
| Without breakfast — Standard Room (26 m²) | from ¥19,400 for 2 guests |
| Without breakfast — Moderate Room (36 m²) | from ¥22,400 for 2 guests |
| With breakfast buffet — Standard Room (26 m²) | from ¥26,400 for 2 guests |
| With breakfast buffet — Moderate Room (36 m²) | from ¥29,400 for 2 guests |
| Inquiries | Tel: 043-297-6666 (Reservations: 10:00 AM – 6:00 PM) |
- Rates include one night's accommodation, breakfast (breakfast-buffet plan only), a mystery-solving kit (one per room), tax, and service charge.
- Rates vary by date.
- Other room types are available, as are rates for 1, 3, or 4 guests.
- One mystery-solving kit is provided per room; additional kits are available for ¥2,200 (tax included).
- Recommended age: upper elementary school students and above.
- Estimated play time: approximately 2 to 4 hours.
- Playable hours: from check-in to check-out.
- The game uses the LINE app to progress and check hints; please refrain from walking while using a smartphone inside the hotel.
- A smartphone or other communication device is required for this plan, and data charges are the guest's responsibility.
- Images are for illustrative purposes only.
