Tsukasa Tachibana's quiet life changes abruptly when he is chosen as the test subject for three witches finishing their final exams. Chipple works to earn his genuine liking through her unique approach, while Irene competes by seeking his attention at every turn. At the same time, Liv pursues a far more dangerous goal. As their rivalry intensifies over the shared objective, Tsukasa finds himself at the center of an unexpected magical contest.