Can Saitama from One Punch Man be killed by the Death Note?
No, because no one knows Saitama’s last name.
Pft, fools. Just get your girlfriend to trade a portion of her remaining life to get the eyes of a Shinigami so she can see his real name.
if the deathnote can’t kill someone in a situation that’s possible then it defaults to heart attack. The problem is that a heart attack won’t kill him so he can’t be killed unless it’s a specific situation with tons of planning to set it all in motion. Or maybe he accidentally punches himseld.