The grammar is not perfect but it is readable. The development of the story is not going very well, the fact that the MC does not have the memories of the body is a little disturbing because the ex body owner was a genius, i really hope the muscle memory stayed otherwise it will become du grand n'importe quoi.I am a son of Hades, le fils d'un des Big tree, even if it happened at the moment he took over the body, he should have been stronger, Physically, this means that he woke up too soon after his transmigration, he would have had to stay sick in the struggle, the time that his body adapts to these powers of demi God, he agreed to call the mother of the corps "mom" too quickly , it's like he rejected all his past without thinking and is already close to school and everything,It's not realistic enough. The author should really look up the powers of Hades and see the technical data sheets of the demigod son of Hades in Percy Jackson , The MC should have been more OP. The development of the relationship with Alice is extremely forced ,Alice is too OCC inside, it's not our lovely Alice , The MC is not yet stable enough in this new life to notice Alice, He doesn't even know what his birthday is, that of his mother, In short, his identity is precarious at this moment. In short, I hope I didn't insult the author with my remarks, I just wanted to help with the huge holes in the plot.
