Unification of Japan Episode Collection I: A Patriarch's Love.

Nakajima (Yoshimi Tachi) returns to the office for the first time since the end of the self-isolation period. He urges everyone to sanitize and keep social distance, but the other members act like nothing’s changed. Unable to hide his frustration, Nakajima is further thrown off by Himuro (Yasukaze Motomiya), who also seems completely unfazed. In the midst of this, a letter arrives for Himuro—from Hayato Omiya, currently serving time in prison.