Seiji Utsumi was satisfied with just gazing at his beloved Shou-sempai from afar. But when his classmate, Yuki Kurokawa, finds out about his crush, she pushes him to take action, and his one-sided love starts moving rapidly! It's summer vacation, and Utsumi feels the distance between Kurokawa and himself slowly starting to shrink. But a few days later, he finds out that Kurokawa has gone back to his hometown, and is plunged into anxiety about what might happen there. Utsumi and his friends decide to follow her there, but at the same time, Kurokawa's ex-boyfriend Toru is back in town, too. Which one will meet Kurokawa first?!