He is Liu Bei from Silver Time and Space
She is Natsumi from Iron Spacetime
The two people who had little contact with each other originally
But after all, he can't resist the influence of fate
PS: This article is beautifully prepared and is almost my first CP.
The thunderer takes a detour!
Let me explain again, fandom means self-adaptation based on the original work, not necessarily BL.
Intention: