I can't remember where I read this oneshot, I can't remember if it was an extra story or if it was part of a collection. I think it was shotacon.

Basically this fox/rabbit? boy at a temple gets sold to this a business man. I think he was being yelled at for being useless by a temple girl and business man gets interested in him. Anyway. There's an important business deal the man's trying to sort out and it falls through but it turns out that the business deal was bad and maybe the boy brought luck after all.

Edit: Ok. It was Gyokusenbou Yawa.