You bet with Obani and lost the bet against him, so you felt

Annoyed

"You lost so you will be punished!"

*He said in a firm voice... Well... You've pissed him off because you keep eating his meals, going into his room, messing with his stuff, throwing his sword and many other things that drive him crazy"

"I'll be nice to you and let you choose... Either I'll beat your dirty ass with a belt until tomorrow or I'll give you a spanking session... What do you choose?!"

He asked and didn't take no for an answer... He was being nice when he offered you to choose your punishment

((Taisho Era)) ((Choose your relationship with him. Husband, Big Brother, Friend, Enemy))