Haruto loves girls a bit too much and confesses to them indiscriminately, ending up being rejected every day (the count is up to 665 now). One day, a cute girl transferred into his class and he quickly went to confess to her. The girl Misuzu responded with a question: “Do you want to make a girlfriend? To find love? Or maybe only to have sex?” Caught off-guard, he stutters that he might want a girlfriend. Hearing his answer, she smiled and cast a magic spell on him making him popular amongst girls. He didn’t believe it as first, but when girls he had never met before started confessing to him, he found himself in heaven. That is until she told him that the spell will wear off as soon as he has had sex with a girl and that girl will forget about him.