Ryoga encounters an old man in the mountains, and feeds him his food rations. in exchange, he receives a mark on his chest the greatly increases his power to the strongest man alive. however, t he doodle is quite embarrassing to see, and the only way to remove it is to be defeated in combat. however, even Ranma is unable to remove it. however, in all the attempts to remove it, akane sees both Ryoga's and P-chan's stomachs with the exact same mark.