Brother (parent) and Lover

An alternate version of my other story "Mother, I never had", which can be read in my book "Stories of lover in the air".
You don't really need to read the other version to understand this one. But it will help connect the dots earlier in the story before the explanation if you do read it.
I am posting this as a separate story because it got longer than i expected.
I gave up on trying to shorten this after the 13th chapter.

The plot:
Rain has been raising his younger brother Sun since they were kids.
Enter Phayu, a charismatic senior who happens to come to his rescue one rainy night.
The lives of the two brothers take a turn as this new man enters their lives.
Is it good? Or is bad? Read to find out.