i noticed that every anime (not sure actually) got i scene where "how do you do that? How can you wake up when i beat u like that? Why this? Why that?" and they always got explaination of those Q. "Actually I do this... I do that..." and they explain it in the middle of fight or pitch/court (sports anime which is really concern about time).

one more... hero always lose first n then suddenly got stronger with their fighting spirit or angriness.