KÅsei disagrees with the set piece that Kaori has chosen for the gala concert. Hiroko wants KÅsei to focus on being a pianist and to not focus so much on his dead mother. At night, KÅsei and Kaori sing "Twinkle, Twinkle, Little Star" before arriving at Kaori's house, where her parents work in a family-owned pastry shop. The next day, KÅsei and Kaori struggle to be in sync during their practice. To relax a bit, KÅsei, Kaori, Tsubaki, RyÅta and Nao play with fireworks by the school swimming pool. Tsubaki accidentally pushes KÅsei in the swimming pool, where KÅsei recalls Hiroko telling him to hear the music from his heart and not from his ears. He wakes up to his friends, in which RyÅta saved him from drowning. On the day of the gala concert, KÅsei worries when Kaori has not arrived yet.