When Karin becomes handsome Kiriya's object of affection, she wonders if she can truly deal with the consequences. Upon learning that Kiriya asked Karin to be his girlfriend, Karin's schoolmate Yuka bullies her and pushes her down a stairway to depression. Later, Kiriya asks Karin to go on a trip over their summer vacation, but their plans take one wrong turn after another. Can Kiriya bring Karin happiness? Or does his love just spell trouble?