"A Supreme? More like a dumb lucked-out idiot. The main character goes back in time and screws everything up. His family was supposed to be massacred in 10 years, but he manages to accelerate the events, causing their destruction in just 10 days.
There are other novels where experts travel back in time, but this one is probably the worst. Instead of acting like an experienced powerhouse, he behaves like a clueless protagonist who just started his journey."