On the day he turned 11, Tom Riddle received his acceptance letter to Hogwarts, and his soul merged with a traveling soul from our world.

A new Tom Riddle is born, and he will take the wizarding world by storm.

With future knowledge and some creativity, he will achieve anything he sets his mind to.At the same time, he is also in the world of the Marvel Cinematic Universe/X-Men.

No harem, by the way

Thor's hammer rose high, a thousand thunderbolts gathering. Iron Man, in his golden and red armor, dashed through the rubble. Wolverine, reeking of alcohol, engaged the Hulk in a fierce battle. "This world is terrifying," Su Bai exclaimed, taking it all in. He dodged Loki's sneak attack, his hand flashing with golden light, unleashing a punch of hundreds of millions of plasma beams. Behind him, a field of superheroes and villains lay sprawled.