Rating: 2/10. Pretty trash for long time manhwa reader ngl (read up to chapter 11).
Plot: MC reincarnated as his son and wish to take revenge against his enemies.
Reasons for bad review: Boring and predictable story. MC is acting pretty weird. Firstly, he wishes to go back to the acadamy where his son was bullied. He could rather spend his time training than doing useless stuff like this. I get that the author wish to show that MC is trying to take revenge for his son but there are better ways of doing it. Another thing that weird me out is that he was ambushed by a group of assasins from rival faction but he let them lived rather than killing them off.
Overall, okay-ish for new readers. As for long-time readers, don't bother it, your brain will rot.