妖精的尾巴惩罚游戏是第几集？

OVA第八集,妖精的尾巴惩罚游戏出现在OVA中讲诉了大魔斗演武进行了约定,那一组输了就必须听下一组的安排,为此一天。

Othe eighth episode of OVA, goblin tail punishment game appeared in OVA. The great devil fought and performed martial arts. That group lost and had to listen to the arrangement of the next group, for this day.