Oasis

S1 E3: Bento boxes for lunch are quite popular at Mizuhosaka Academy's. Yuma's mother-in-law, Otoha, who works at Oasis, the school's cafeteria, has been worried about the lack of customers. That's when Anri started working there part-time as a waitress. She put all her time and energy in handing out pamphlets and such in order to drive in more customers but all her hard work didn't seem to pay off.