at the end, blood relationship won over. its not just ambitions that makes person better but bond as well. shiyu is probably aware that even if he knew it later on,his couz will forgive him in the end.
Ch 1473 A Controlled Life!
It's Not Easy to Be a Man After Travelling to the Future
"Dammit! I never thought that you'll be the first one between the two of us who'll lose their virginity first. I wish my future boyfriend will also be good in bed like yours. All the guys I've dated before suck so there's no way I'd give my first time to chickens like them. Should I also have a one-night stand? Maybe I'll find my own Mr. Yummylicious."