On Kokoro's birthday, the group goes to Hirakata Park. While enjoying the amusement park, they see a suspicious man. The man introduces himself as Kinomiya and claims to be Kokoro's father. Kinomiya has debts and entrusted his daughter to the former owner of Kizunaya because he didn't want to get involved. Kinomiya wants to see Kokoro and asks Jun to intervene. However, Kokoro says he abandoned her and can't forgive him.