Stupidity: Genzo suffers a possibly career-ending injury to his ankle. He goes to the doctor for that, and the doctor talks to him, and they discuss this important matter...without his parents or a legal tutor, teacher, coach (there's nobody present at the visit, and he walks out of the hospital on his own). He's eleven years old. His personal coach that follows him anywhere is nowhere to be seen in this episode, obviously because it would detract from the drama if he were around to explain stuff to Genzo's teammates or the main Nankatsu team coach.