[Western Crossover] The Dark Lord’s Sister Is No Ordinary Girl

Warning! The timeline is a mess, and there are lots of alternate-universe elements!

Tom Riddle's younger sister, Dagla Riddle, is a genuine Muggle.

However, Dagla, who has been inseparable from her brother since childhood, now has a little secret.

She's a mutant, and a member of the X-Men.

Tom's diary: Dagla's been away from home a lot lately. I wonder where she's going. Should I tell her I want to rule the wizarding world?

Dagla's diary: Things have been difficult for mutants lately, and the Professor is very troubled. Should I ask my brother if he has any ideas?

And so, each of them kept their biggest secret from the other.

Note! To bring the worlds closer together, Voldemort has been changed into an ambitious, obnoxious little brother who starts school after the Marauders. (Just kidding.)

Warning: Ambitious old Voldy! I think he was always like this, even as a child. Having a little sister probably wouldn't change his personality much, but it would definitely affect the fates of quite a few people.

Theme: Two idiots