Besides the lacking grammar, I feel that the story is moving way too fast and the MC was literally given no time to adjust to his situation. Also, you should refrain from adding things that will make unnecessary plot holes and make the story more convoluted like the three jointed pinky toe the MC apparently had... That only made things more complicated because, first of all, there there is no way that having more than one quirk will make you have more than one joint in his toe or else All for One would have a toe made of only joints. Secondly, I do not believe there would be many records of anybody being born with more than one quirk, so the doctor handling the situation like it was nothing special, is dumb. Finally, and most importantly, the MC does not have a quirk so he should only have one joint in his pinky toe! All the MC has is a system that grants him the powers (and race) of the chosen character! So he should not have the same physiology as a normal human and, even if you manage to bs your way through that, he still does not have a quirk which is a biologically evolved human power! He only has a system given power which does not stem from his own human genes! Those are the major things that bother me! Other than that, if you pace the story right, then I believe it has great potential! Also, is this story a harem or not?
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