After accidentally claiming his love for Chisaki, he follows her into the sea and gains Ena. It is later revealed that he had known of Manaka's feelings for Hikari since the eve of the Ofunehiki five years previously, but agreed to keep it a secret at Manaka's request. After having a talk with Kaname about Chisaki's true feelings, Chisaki finally accepts her love for Tsumugu and they become a couple.