||Sophia Ring SP Saturn VII
was Yuuta's middle school classmate. Although she considered Yuuta to be her only true friend, she ended up transferring schools without saying goodbye during their second middle school year. She suffers from delusions and calls herself "Sophia Ring SP Saturn VII" and addresses Yuuta with the nickname "Yuusha" ("Hero"). Satone is a character from the second light novel and appears in the anime's second season. Yuuta's delusions began with his admiration and mimicry of Satone's behavior.