Aoba-kun’s secret turns out to be greater than Mayo had suspected. After knowing his secret, Mayo and Aoba-kun get closer. Meanwhile, Nao becomes paranoid after Haruma, a former schoolmate with a grudge, says some harsh words about Aoba-kun, and he turns to Mayo with his worries. After confiding in Mayo, is Nao starting to fall for her…?! The love gets deeper in Volume 4!