Team Entertainment, a subsidiary of Edia Co., Ltd., launched an online lottery for the anime 'Welcome to Demon School! Iruma-kun' on the 'Marukuji' platform starting May 15, 2026. Priced at 770 yen per draw, the lottery features exclusive new illustrations with a 'Check Sailor' theme. Prizes include pouches, tapestries, acrylic stands, and badges, with a special random photo card bonus awarded for every five purchases. The sales period runs until June 21, 2026.