Aaaa I'm not sure about manhua but i can tell you some novel ><
Please
https://www.novelupdates.com/viewlist/9312/
^there you go!! All of them is QT(Quick Transmigration) in which MC is binded to a sustem, go to many world and fell in love with the ML
I really reccomend
QWTFOD(Quickly wear the face of the devil)
WTMT(Who touched my tail)
They're both already completely translated to englishh! And the plots are superb each world
If you want a pure fluff with no complicated plots and mary sure MC, try "i'm not a human"
Happy exploring the danmei world (⌒▽⌒)
Does anyone know similar BL manhwas!?!
(≧∀≦) I'm obsessed with them...