Yep, this is probably the only time I came close to crying while watching Gintama.
They've managed to make Isaburo's swan song have even more impact than the shogun's death scene, and to think that he was a villain before all this and only appeared in 3 or so arcs before this one, compared to the shogun who has entire episodes dedicated to his tighty whities.
Kondo and Isaburo can be cut by enemy swords hundreds of times and they can't be killed, while oboro just dropped dead after 2 strikes from hijikata and kondo, lol
Everyone's laughing during that preview, it's as if everything's back to normal and there are no dead bodies scattered around that island..