[Crossover] Have You Seen My Girlfriend?

A certain world fell into crisis.

The source point, the foundation of the world, had withered from lack of replenishment. The entire world was beginning to teeter on the branches of the World Tree. The world steeled itself and decided to learn from countless predecessors: no matter what, it would first abduct a transmigrator. If things went well, it could weave a new chapter. If not, it could use the transmigrator's soul to patch things up.

Then, perhaps because it overdid it, countless transmigrators came raining down like meteors, smashing its already tattered barrier to pieces.

The whole world was transformed beyond recognition.

The world: "..." Its original intention hadn't been this, but at least it had escaped the crisis. Um... let's just leave it at that, okay?

The fates of countless people were officially changed from that moment on.

Many years later, in a corner of Gotham, Jason Todd was struggling to survive when he received an acceptance letter from a British school of magic. The Boy Who Lived took him by the hand and led him into Hogwarts.

Ten years later, Jason Todd hurried back to Gotham to save his girlfriend, resolutely crossing several worlds along the way. Then he saw the truth of each world.

This is bad! Why do I have such a miserable life in every world?!

And so his girlfriend came to save him.

Jason: ...My girlfriend is a world-class hero...

Warnings:

1. The Jason who is the male lead is completely OOC!

2. There are lots of transmigrators paired with original characters! The various stories may not all have perfect endings, but most of them do get relatively happy endings.

3. Lots of Harry Potter content! The author loves the original books, doesn't bash Gryffindor or glorify Slytherin, and isn't fond of the nobility, so some readers may not like it.

4. The Batfamily is a sensitive topic, and everyone has their own biases. If I haven't understood things properly, or if I bash a character you like, please just click the X.

Theme: Love means accepting each other, flaws and all, and becoming better people together