The official March Monster × ALIEN STAGE “AaD” collaboration café will be held from September 16 to October 12, 2026, at two locations: motto cafe Ikebukuro and motto cafe Osaka. The event will feature a total of 16 collaboration menu items inspired by the six characters—including Ivan and Sua—as well as 13 types of merchandise, such as collectible pin badges and acrylic stands. Three types of special bonuses will be available based on menu orders and merchandise purchases.