Ranma ½, part 7 number 3

Genma and Ranma are still at the house of the sick kid and Genma, as usual, is bilking him for everything he can possibly get. The kid is ill and says he won't leave the house unless he is given a panda, and Genma shows up but, instead of getting the kid to go outside, Genma just stuffs his face.

Ranma gets angry at Genma and drags him from the house to the Tendo dojo, but the kid, who is supposedly terribly ill and weak, follows them all the way.

Ryoga meets an old guy into martial arts calligraphy and the old guy paints something on Ryoga's abdomen to make him the strongest person in the world. He immediately challenges Ranma to a fight. Ryoga beats Ranma, and has beaten a lot of others. The mark on his stomach, though, is revealed to be rather silly looking and Ryoga would like to get rid of it. Ranma offers to help Ryoga get rid of the marking.