Does anyone know about a manhwa where the ml has bluewish white/white hair color and a blu...

Kinda? http://www.mangago.zone/read-manga/master_s_pet/

nope that's not the one, but thank you(づ￣ ³￣)づ

my bad there are many manga's like that maybe if you explain the story a bit someone might help?

stranger than friends ?

http://www.mangago.zone/read-manga/sit_wait_kiss_me/
This?

it's a royalty manhwa

Is it yaoi?

nope, it's a shoujo manhwa

Then this one http://www.mangago.zone/read-manga/why_are_you_doing_this_my_duke/

yesss this one, thank you!ლ(´ڡ`ლ)