Yaoi - brothers? / stepbrothers?

im searching for a yaoi story where I think the parents remarry, and then there are two brothers. The younger brother somehow forces the older brother to have sex with him and he records it one time. Then he starts to blackmail him into sex but the older brother likes a senior at work (who is also a guy) and they (the older brother and his senior at work) start a relationship but then he finds out about the guy being forced into sex because he hears him having sex over the phone... but still breaks up with him. Then the older brother quits work. and i think thats the last update i read.

And like its quite a depressing story because the brother is all depressed about this...

I am soo sorry for all the mumble jumble here.... im trying to find the story to see if there was any updates because its quite a sad story but i cant find it.

If anyone can help! thank youuu!!!