All of them are in unrequited love. The cool yet passionate in private student → The beloved princess-type student → The scary-looking yet caring student → The clingy honor student →

Third-year high school students Mao, Yuzu, Seigo, and Ryosuke have been neighbors and friends since childhood. Mao has been in unrequited love with Yuzu for many years, but knows that Yuzu's in love with Ryosuke, so he keeps his feelings quiet. Then one day, Yuzu disappears. Mao tries to go look for him, but Seigo desperately stops him. "Don't go after Yuzu." Those words are the catalyst for their feelings and secrets to suddenly start coming to the forefront...