Is there smut in this?

Nope

Thanks

Really? They don't include Gege BDSM tendency here?

What the-
No way... u can't call this BDSM bro!and he's not his biological brother and the mc's adopted parents made him call them uncle and aunt so it's acceptable...ig
In the novel there are some scenes of them(iykyk) but since this is a manhua(chinese) they won't probably draw that...or they'll probably hide all of it with a flower or something....(But it's pure love and with consent too..but not BDSM)