Sugimoto's group meets an Ainu who claims to be an old friend of Asirpa's father and shares shocking news. Meanwhile, Tanigaki gets unwelcome visitors.

Cast: Kento Yamazaki, Anna Yamada, Gordon Maeda, Yuma Yamoto, Asuka Kudo, Shuntaro Yanagi, Ryohei Otani, Katsumi Kiba, Akihisa Shiono, Hiroyuki Ikeuchi, Yuki Sakurai, Hisako Ôkata