Yano Shiki, striving to blend in at school, adopts various personas to please those around him. When a new transfer student, the stunning Minase Akiha, notices his mismatched book choice, Yano scrambles to cover up his true preferences. Akiha abruptly exits the room, leaving Yano puzzled. The next day, Yano witnesses Akiha's altered behavior and discovers her struggle with a split personality disorder, mirroring his own situation. Embracing their shared challenge, they pledge to stand by each other until they can freely unveil their genuine identities.