As Wakana comes down with a cold, Konatsu decides to pay her a visit, reminding Wakana of her promise with her mother to write a song together. Later, Wakana receives a tape from Shiho containing a recording of when Mahiru was in the choir club. The next day, Wakana helps Taichi and Wein with their vocal training before visiting Tomoko and her new baby. Later that day, Wakana learns from her father why her mother kept her illness a secret from her.