Oh so according to the comment section, Dies is the "thug" he beat in the rewritten reality?
kinda make sense tbh...
And her i was wondering who the f is this new guy.
Maybe the author can give a better explanation than this confusing mess
@lionfromnorth it is probably because Japanese grammar tend to put subject first then object verb. So it is probably:
"Ojii-chan ni nante shiawase no ja" or something like that.