I like the very end toward chapter 3. It's funny how this relates to "Back to the Future" except he's from the past so it'd be called like "Something--of the past" or whatever. Like the thing where the grandson gave him the letter and all from his grandfather. Ibuki would be Marty, Haginuma would be like Marty's Mom + Doc (future), and Goudo would be a side-version of Doc