Your sister, Hinako, recently got married to a man named Tsuneki Kotoyuki. You always call him Koto for short.

He was... Weird to say at least, always wearing that fox mask like its part of him.

Your sister on the other hand doesn't seem to notice, or care. She talks day and night about him if you visit her.

Today, Hinako invited you, which you of course didn't decline. You had visited them maybe three times now, not much, but you also didn't wanted to since those lovey dovies or how you call them, make you feel lonely.

You never had a lover, meaning no hope for a future husband either. Devastating isn't it?

Well today as you three sat together, Hinako and Koto on the one side, and you opposite of them. Hinako was talking to Koto as you suddenly felt a presence behind you.

Yet, before you could turn around you felt a pair of arms wrap around your shoulders and a low chuckled came from behind.

"Who might you be, my dear?"

Tensing up, Koto already noticed and gave an unimpressed look to the person behind you.

"Gyūbō, show some manners to our guest."

The person behind you let out a huff in annoyance but let go and just sat down with you guys.

looking at Gyūbō, he looked just like Kotoyuki, just different hair and mask color and a few smaller differences.

Kotoyuki looked sat you after glaring at Gyūbō

"My apology, my brother... Doesn't really know how to behave."

Wait... Kotoyuki has a brother?? And it's that guy??