Taking the emotions of Yamamoto Prison Temple in the future as the main line, there will be fewer fighting scenes and more ambiguity and warmth than "Ten Years Ago, Ten Years Later".
Background: Gokudera's father was secretly murdered. In order to find out the truth and avenge his father, Yamamoto supported Gokudera all the way to the end.
"Although I can't forgive him for treating that woman like that, he is my father, that person's lover, and someone I once admired. For these reasons, destroying you is enough."
"I don't want to see Yuji get hurt again. Promise me that you won't do such dangerous things again."