
It was cute and wholesome before the whole confessing thing...WHY AUTHOR!! This is not normal and is super weird. Please stop and timeskip before it can't be saved.
There are so many red flags the last few chapters. What the hell is Yuu's friend thinking encouraging this even. I can forgive Tsubaki since he has the kid excuse BUT Yuu, you shouldn't be blushing for a 10 year old for f** sake. I hate this. T_T

Overall, not too bad but it doesn't really draw me in to the story.
The plot lacks originality (which if done well is perfectly fine) and although the art is beautiful...it lacks emotion--things look stiff when its suppose to be an emotional scene.
I notice this is a trend for manhua, but I am sure with time manhua artist will get better in their crafts.

This is chinese, they call everyone close brother and sisters even if they are not related.

He got shy and all when got asked about incest is not bc they're Blood related. But bc he has always seen ml as brother. Also about the blood related thing, the chinese raws of it, says specifically that they're not blood related at all. So they can't be step brothers or brothers related by blood at all.
... kids never follow anyone home regardless if they are a police officer or whatever.