Reigen doesn't exactly get attached. He's not one for relationships. He was actually quite content to be by himself most of the time. Even for the rest of his life.

But tax benefits? Hey. That wasn't a bad idea. No wedding needed, either! Just sign the papers. Cool! Great.

And Reigen doesn't exactly get why he's starting to get so nervous. And jittery. And a little sweaty? It's a fake marriage. Fake. "So, uh. How's the ramen here? Preeetty good, eh?"