Noticing Ririchiyo's nervousness, Soshi tries to ease her by transforming into a young boy and then into a woman. Later, Natsume plays around with Sorinozuka various 'switches' which encourages Karuta to try and find other people's 'switches'. Afterwards, Kotaro's younger sister, Hana, comes to the mansion and decides to play house with the tenants, which takes many bizarre turns.