[City Hunter] A Meeting in a Parallel World

This story follows Ryo from the AH timeline, who accidentally ends up in the CH timeline. While trying to strike up a conversation, he is spotted by Kaori from the CH timeline, who attacks him with a giant hammer. That's how the two meet and begin interacting.

Note: The CH timeline in this story is already in its middle-to-late stages. Ryo and Kaori have become an established team, and they have mutual feelings they haven't confessed.

To make it easier to tell the characters' dialogue apart:

Ryo -> AH

A-Ryo -> CH

That's all.

Theme: Love can transcend time and space