Kōsaku has a dream of being married to Ibari and having children. Don Corleone, a Mafia Don and old friend of Ibari's, visits the Ōzora house. Ibari forces his daughters to wear traditional kimonos then has a heart attack when Hibari also wears one.

Hibari tries to entice Kōsaku in her bra and panties, giving Ibari another heart attack. During volleyball practice the ball is knocked to Hibari so she returns it with a serve powerful enough to break the floor. Otori develops a crush on Hibari whilst dealing with her perverted brothers and eccentric mother.

Kōsaku learns. Suzume is frightened of festivals, and the upcoming Kotobuki Shrine Festival makes Ibari so angry he has another heart attack. Ibari fears that if Zenigame learns Hibari is a boy he will have Ibari assassinated. Tsugumi decides to play to get revenge against Umiushi's son, Bunta, for dumping her.

Kōsaku saves a girl from delinquent members of Kokuryu High Schools boxing club, until Hibari beats them up instead. A strange man harasses Tsubame and Suzume then breaks into the Ōzora house and peeks on Hibari in the bath. Private detective Shirachi Kogoro discovers Hibari is a boy.

Kōsaku and Hibari share a dream of marrying and winning the World Boxing Championship. They wake up and realise they have switched bodies. They consult an Occult enthusiast, Occult Ittosai, who informs them their souls have left their bodies. The only solution is to share another dream and return to the correct bodies.