Tokyo Metro x QuizKnock to Host "Tokyo Metro Mystery Solving Guidebook: A Route Map Tracing Jewels"!

Tokyo Metro Co., Ltd. (Headquarters: Taito-ku, Tokyo; Representative Director and President: Akihiko Kosaka; hereinafter "Tokyo Metro") will co-host "Tokyo Metro Mystery Solving Guidebook: A Route Map Tracing Jewels" with baton Inc. (Headquarters: Shinagawa-ku, Tokyo; Representative Director: Yosuke Kinugawa), which operates the knowledge group "QuizKnock" led by quiz king Takuji Izawa, from Monday, April 27, 2026, to Friday, July 31, 2026. "Tokyo Metro Mystery Solving Guidebook: A Route Map Tracing Jewels" is a city-exploration mystery-solving game where participants challenge various mysteries hidden in Tokyo Metro stations and towns along the lines, aiming for a goal. During the game, there are scenes where participants can freely choose their destinations, allowing them to enjoy the mystery-solving while building their own unique course. Unravel a variety of rich mysteries with your brilliant ideas! Tokyo Metro will contribute to revitalizing areas along its lines through "City Tourism" in Tokyo. Tokyo Metro x QuizKnock "Tokyo Metro Mystery Solving Guidebook: A Route Map Tracing Jewels" Details 1. Event Period From Monday, April 27, 2026, to Friday, July 31, 2026. 2. How to Participate (1) Purchase a mystery-solving kit at a sales store. (2) Start solving mysteries from your preferred station. (3) Enter your answers on the game website. (4) Repeat solving mysteries and choosing the next station (spot) to visit, touring all over Tokyo. (5) The game is cleared once you solve the final mystery! 3. What You Need ・An internet-connected smartphone is required. ・Please ensure your smartphone has sufficient battery life. ・Communication fees are the responsibility of the customer. 4. Sales Period (1) Pre-sale: Scheduled for Saturday, April 25 (at HMV&BOOKS SHIBUYA store) (2) General sale: From Monday, April 27, to Friday, July 31. 5. Sales Price 2,500 yen (tax included) *A Tokyo Metro 24-hour ticket is not included. Separate transportation fees will be required. 6. Sales Stores and Hours (1) HMV (HMV&BOOKS SHIBUYA, HMV&BOOKS SPOT SHINJUKU, HMV Esola Ikebukuro, HMV Lalaport Toyosu) (2) Hontas Tameike (Tameike-Sanno Metro Pia store) (3) Bunkitsu (Roppongi) (4) Ogaki Shoten (Azabudai Hills store) *Sales hours are subject to the operating hours of each store. Sales are not available on store holidays. 7. Refunds No refunds will be given after purchase. 8. Inquiries (1) Inquiries to Tokyo Metro Tokyo Metro Customer Center https://www.tokyometro.jp/support/index.html (2) Inquiries regarding mysteries baton Inc. nazoguidebook@baton8.com 9. Important Notes ・Please refrain from solving mysteries or operating your smartphone while walking, as it is dangerous. ・Please be extremely careful for your safety when walking on platforms or within station premises during the mystery-solving event. ・Please refrain from solving mysteries in places that may inconvenience general customers. ・Station staff and train crew do not have hints or answers to the mysteries. ・Strictly prohibited to publish mystery questions, answers, or distributed materials on the internet, such as blogs or social media, or to transfer or resell them. ・Some mystery spots are subject to the operating hours of the facilities (daytime hours). ●What is QuizKnock? QuizKnock is a media platform operated primarily by quiz king Takuji Izawa, integrating entertainment and knowledge. Based on the concept of "Learning that starts from fun," it daily disseminates articles and videos that serve as an opportunity to "know" something. Its YouTube channel (https://www.youtube.com/c/QuizKnock) has surpassed 2.6 million subscribers (as of April 2026).