THE IDOLM@STER SideM × SMILE BASE CAFE “Royal Chess Lounge” 2026

【Event Period・Location】
・The collaboration cafe “Royal Chess Lounge” between “THE IDOLM@STER SideM” and SMILE BASE CAFE will be held sequentially in 3 cities
・Nagoya Sakae Store: August 19, 2026 (Wednesday) – September 1, 2026 (Tuesday)
・Shinsaibashi Store: September 12, 2026 (Saturday) – September 24, 2026 (Thursday)
・Ikebukuro Store: October 8, 2026 (Thursday) – October 20, 2026 (Tuesday)
・On the final day of each store, only daytime session ① will operate
・Admission is free / advance reservation system with time-slot rotation (same-day admission is possible if spaces are available)

【Collaboration Menu】
・Newly drawn illustrations themed around “chess” will be used
・3 food items: 1,430 yen each (tax included)
・3 dessert items: 1,320 yen each (tax included)
・6 drinks: 800 yen each (tax included), available for takeaway
・Menus inspired by Touma Amagase, Hayato Akiyama, Natsuki Sakaki, Genbu Kuro, Takeru Taiga, and Momohito Hanazono will be offered
・Each person must order at least 1 collaboration menu item
・800 yen drink tickets will also be sold, and a food and drink benefit will be included with each purchase
【Benefits】
・For each collaboration menu item ordered, receive 1 random coaster from a total of 17 designs
・Takeaway menus are also eligible for coaster distribution
・For every 2,000 yen (tax included) spent, including goods and food and drinks, receive 1 random postcard from a total of 12 designs
・Benefits are limited in quantity, and out-of-stock and restock information will be announced on each store’s official X account
・The X campaign will randomly award a complete set of all coaster designs to 3 winners
・Entry Period: August 19, 2026 – October 20, 2026
【Goods】
・7 new goods items themed around chess will be sold
・Newly drawn can badges, 6 designs: 660 yen / BOX 3,960 yen
・Mini character can badges, 11 designs: 660 yen / BOX 7,260 yen
・Acrylic stands, 6 designs: 1,700 yen each
・Mini character acrylic mini stands, 11 designs: 990 yen / BOX 10,890 yen
・Newly drawn acrylic cards, 6 designs: 660 yen / BOX 3,960 yen
・Mini character acrylic cards, 11 designs: 660 yen / BOX 7,260 yen
・Acrylic art boards, 6 designs: 2,200 yen each
・The 7 items from the first collection with a different theme will also be sold
【Usage・Notes】
・Goods cannot be purchased alone; a collaboration menu must be ordered
・Drinks and goods are available for takeaway / food and desserts are not available for takeaway
・Identity verification of the reservation representative will be conducted at the time of reservation, so please bring identification and the reservation confirmation screen when visiting
・Orders are placed through a mobile ordering system using a smartphone
・During busy periods, guests may be seated together with other customers
・Visiting in cosplay is not permitted
・Goods and benefits are limited in quantity, and purchase restrictions may be imposed depending on sales conditions

Official Website : Click Here