Looking for yaoi manhwa

The story is like MC's father announce to him and his elder sister that ML gonna be working in the company and also he wants to adopt him. But MC and his sister didn't like it, MC and ML used to be closed when they were children but ML's parents passed away so MC's father raised him and always complaint about how is MC is not like ML. But then MC found out that ML is actually like him then seduce him.


I read it till here and lost it after that, now I don't remember the name, if anyone knows please let me know.