Takasugi's memory of the # of wins and loses he has with Gintoki shows how he's still holding on to his past. That backstory was great! And that Gintoki punch!
now I'm more interested in Shouyo's past and why he set up the school! but damn, remembering how everything have played out, his death must have really punched a hole in their hearts (remembering that they got back his head after the war.. T^T )