Sister Angela promises to spend Christmas with Kosaku if he defeats a devout Mexican boxer with an unusual tattoo on his stomach, but how can he possibly win when the Mother Abbess forbids him from punching his opponent in the midriff!?

Then Kosaku finds a kindred spirit in the attractive form of the ex-girlfriend of his next opponent....and things really heat up when she moves in with him! Now, why is Sister Angela acting so strangely? Is it possible? Can it be? Is she actually...jealous!?