At Kakyoku Academy, the Academy Detectives are selected from the best of the student discipline committee, and charged with keeping the school's order.Detective Sayama Tsubaki is paired with underclassman Sakurai whose bloodhound-like nose for crime wounds the elite Tsubaki's pride.They've been ordered to pretend to be a couple, to catch the so-called "couple-crusher" red-handed.But if it's just an act, why is Tsubaki so flustered by Sakurai's lovey-dovey behavior?