Remember when the gramps said something among the lines of: "You need to make sure they are still monsters, everyone has the opportunity to change, if they do, that means they are humans, and we do not kill humans" Once I read this I was like OH COOL!!! a story of revenge that will keep us wondering if the villains can change and the morality of revenge itself. I even theorized, that there could be a place for the aftermath of the revenge showing the effects on families and other people.
WELP!!! one can dream huh??? MFs actually said: "sure my son's death may be justified...but..." WHAT DO YOU MEAN!?!?!?!!?!?!?!? DO YOU HATE YOUR SON??, DO YOU LOVE HIM?? WHY DID YOU DID NOTHING ABOUT HIM??? WHERE WERE YOU FOR THE PAST 10 YEARS???? WHY SHOW THE PARENTS AT THE END IF THEY WILL NOT BE OF SUBSTANCE WHATSOEVER?!?!?!?!!!?
Hell, I believe at this point it would've been more interesting if they did attacked him so Uruma had to defend himself, hurt and kill these people who were also "justly" try to get revenge.
The only thing good about this is that unlike what I thought last episode, the author doesn't really plan on extending the story, so it will probably end soon.