You could say it's both, because the story is pretty much slow-going in the relationship department (hence the shounen-ai tag). There's only like 1-2 small chapters with sex scenes (that's where the yaoi tag comes in).
Either way, this story is really good and worth the read! :)
I keep commenting but I just can't express how invested I have become in these two people like damn. The author's so good at dragging you into their lives I literally feel like I'm hearing about one of my good friend's life story
Okay so I couldn't resist and I firkin went ahead and read up to ch 41 on that website because this is so good and AGH IT'S GOING TO BE PAINFUL WAITING A WEEK FOR UPDATES
this is some fucked up story right here... I love it
My exact words everytime someone asks me about KS..