A surprise heart-shaped cookie bewilders Shiraishi on Valentine's Day. White Day comes along, and Shiraishi has his chance to return the favor. Oblivious to the identity of his secret admirer, Shiraishi enlists Kubo's help to give his reciprocal gift. Meanwhile, Shiraishi and Kubo's classmates and family can't help but catch on to their budding relationship...

For older teen audiences.