One day, Kakeru unintentionally buys a canned melon soda. When he sips it, the can turns into a girl. He continues kissing the girl for a while. It is a momentous event for him, since he has lived without a girlfriend for 16 years. While he's surprised, she announces, I'm going to live with you because you have become my owner. Meanwhile, a suspicious looking guy named Otoya Hideyuki appears and, surprisingly, tries to kiss Kakeru. He is accompanied by his secretary, Kizaki Airin, and introduces himself as an official from the Ministry of Economy, Trade and Industry.