The writing quality, grammar, world building and background etc. are excellent as expected from the author if you have read his other works. However, the character design of the MC seems pretty bad, it is unclear if he has any cheats, he continuously wastes time, he knows from when he is 4 days old that he’s in the Naruto world but for 4 whole years he doesn’t do any training or preparation, he is continuously whining and cribbing like a 🐈, he has no drive at all and is frankly annoying! Still hopeful that the character will improve based on reading the other works of the author!