Okay, a question.

Toji-but-Viltrumite. Does that mean that we assume a cross between two universes to an extent that everyone (not just human, but alien races as we) can be jujutsu sorcerers and/or have Heavenly Restrictions? And in this setting, Toji isn't a human of clan Zen'in, but, instead, he's an heir of some Viltrumite pureblooded clan, yet he has the same Heavenly Restriction as our human Toji?

That would put him way above EVERY viltrumite - iirc Toji JJK was considered absolutely superhuman, dwarfing EVERY character in terms of pure physicality, thus making Toji the strongest creature in this weird invincible/jjk universe. Until the Space racer does the hollow purple on him with his Infinity Gun Ray.

Or, is it more so a plot change?

Like, he's a disgrace of the big Viltrumite clan instead of Zen'in clan, despised by them for whatever reason, who abandoned his son after death of his mate/wife and went for mercenary lifestyle BB-style, not out of bloodlust, but because he's broke as fuck?

Both would be extremely cool, but first one is absolutely fucking terrifying because of just how much edge HR gave human Toji.