The Outsider 2018| Ending scene Jared leto take revenge

This one is on Netflix, it's fictional, about a former US Marine who gets locked up for reasons not explained in a regular Japanese prison during or after WW2, has a cell mate who's Yakuza, they become friends, he then gets recruited by his friend's Yakuza family, this is the end scene, I actually found this film quite good, in terms of overall atmosphere, I'd found it purely by chance....