Hina has a dream where she hangs out with her grandfather. While everyone at the set, Youta wonders what is going to happen once summer ends. When he expresses his concern to his parents, they reveal that Hina is actually the granddaughter of their mentor and that Hina's father abandoned her. After Youta has a conversation with Hina about when she became a god, they decide to go meet her father. When they arrive at his house, Hina's father and stepmother, Toshitoku and Isuzu Sato, are shocked when they see Hina in person. While Youta and Toshitoku are alone, Toshitoku reveals that Hina was born with a debilitating condition known as Logos Syndrome, which caused him to abandoned her when he realized there was nothing he could do to help her. Once Youta and Hina leave, Youta is agitated about the situation. Later that night, Hiroto shows up at Toshitoku's house. (Source: Wikipedia)