Rascal Does Not Dream Of A House-sitting Little Sister (Series Vol. 5 Light Novel)

Sakuta Azusagawa is a second-year high school student whose life suddenly takes a turn for the weird when he sees an enchanting girl dressed as a bunny girl in the library with no one else seeming to take notice of her. Turns out that she is Mai Sakurajima, a teenage actress on hiatus who is also Sakuta’s popular upperclassman and for some reason can’t be seen by anyone except for him. Dubbing the phenomenon “Puberty Syndrome” (abnormal experiences brought on by the turmoil and instability of puberty), Sakuta becomes intrigued and decides to solve the mystery, while getting closer to Mai and meeting others also suffering from “Puberty Syndrome.”
Notice: This light novel is written in Japanese.