This has a combination of everything I love. Chengyi’s acting was great and the story line kept you guessing until the end. You may not like the ending which left us guessing if he died or not. But I love it. I do think he survived somehow as he wanted to live a different life. Not much romance in the story but enough to keep some of us happy. The fighting and solving mysteries along the way was enough to unlock all the plots which made 40 episodes very bearable.
It deserved a second rewatch because there are some many mysteries yet to be discovered.