During a school hiatus, A-Ko fantasizes about discovering the ideal romantic partner. This causes a tiff with C-Ko that results in C-Ko fleeing and narrowly avoiding a collision with biker Kei. A-Ko works as a temporary fast-food employee to gather funds for a festive outfit and encounters Kei, whom she promptly falls for. B-Ko also takes a liking to Kei, without knowing that C-Ko is the object of his affection.