Looking for the title of this bl

Alpha rich guy and a omega body guard. The rich guy thought his mate was dead since something happened when they were young and his father told him so but his mate is actually alive and is the omega body guard. The omega body guard don't have a smell because of the unfortunate event that happened. The rich man have a rest house at the forest? and this is where that tragedy happened.

I'm really having hard time explaining it since I really know the plot but I just forgot the title :'( Thank you in advance.