(A) is desperate to be a big deal, but is looked down upon by his classmates and community. Additionally, (A) has a rivalry with (B) who is extraordinarily gifted. (A) stumbles upon an encounter with a mentor figure who also happens to be insanely powerful, but first (A) must endure training before being gifted with power to help them rival (B). (A) uses their power to compete in a tournament, loses, but gains recognition.
A power villain group shows up who has some connection with (A). In the process of stopping them, Mentor Figure engages in a climatic battle but this will be their last stand.
Nope, nothing alike.