Kakeru Daichi purchases a can of Melon soda. When he goes home and drinks it, the can transforms into a girl. Thinking it's all a dream, Kakeru acts perverted in front of this girl, before getting attacked by the girl's powers. Kakeru ends up treating the can rather shoddily due to the conflict in behaviour and leaves her in a cupboard before going to school. When he comes back though, he finds the girl drained of all life due to being low on carbon dioxide, so he kisses her to allow her to live...