Sadly, Yukine is totally a person to get involved.

So here's an idea. They met when Rowen was getting harassed by college classmates off campus and Yukine got involved to whatever degree of success & from there they went to go lick their wounds nearby at like a cafe and spent a while shittalking and chatting? Continued to stay friends even if sometimes they're like mostly taking through text? And yukine drags him to help with shoots or model or just spend time doing dumb stuff?