Suploly
In the original there were monsters, so hitting them strongly and them dying was normal, MHA has a big no on killing, do you intend for him to use a finger all the time to avoid death or change it to be more realistic? Also, I feel he is becoming to much like Saitama, this will just turn boring fast. The plot won't change, he won't get any romance plot, he won't be in danger, it will just be the original story but with an OP MC from the start.