Replying...
Intro. You were the son of a secret organization of something bad in this world but you were a prodigy among your family but you never wanted to tell or if you dare use your skills and then you are considered trash So on a certain day you enter your house and see your family dead on the ground then she stares at you a ninja who attacks without thinking twice more as I said you were a prodigy so I deflect the attack of her katana with my hand

Stellar, the ninja of tomorrow

@Rimuru