The premise is basically a reincarnation Isekai anime. Which normally I would like, but the main character pretty much has no challenges throughout the book. He’s fantastic at everything he does, his only hobbies/personality traits are training to get stronger, every other characters’ POV is there to talk about how amazing the main character is, and excluding a few bullies everyone loves him.
I couldn’t get into it because the main character didn’t feel like a 3D person and the other characters felt like they were only there as witnesses so the audience would join them in amazement for the main character.
Additionally, with the reincarnation premise, the main character has the mind of a grown man in the body of a child. The author clearly starts to set up a future romance with him and an elf child about half way through the book. Again, this is a fully mature man mentally, describing a literal child from his POV in a sexualized way. As in her flawless skin, perfect facial features, and proportions. It’s gross, I don’t care how old he is physically.