Meow

Fantasy,action(not sure)
not bl or romance
Kinda martial art style
(Murim setting maybe)
Male mc
The mc disguises himself as a girl and then turn a boy later on
Mc has long black hair, ties in a pony tail
(Its very vague info but i don't know much myself)

A BL
I saw a post on social media, only one panel where the mc says " he's hot and rich why should I let him go"
The mc had brown hair and title is supposed to be "double trouble" but cant find it
Apparently the mc has a younger brother and both of them are bottoms
(I lost the post)