That's insightful. :) I always thought those two were the real bullies of the story (and people like the girls who is now queen), but I underestimated Yatori. It was interesting to see that Yatori fans all signs of Yukari's insecurities so that Yatori can be the only one who loves Yatori for what Yatori is. Yatori can't pull a Karino and take the king card for himself, because he has build up a Kuze-style emotional manipulation and dependency in his uke. Yatori's game depends on Yukari being insecure and k feeling less than others so that Yatori will believe only Yukari would want him. It's very telling that instead of finding things that are good about Yukari and complementing them and using them as a way to build Yukari's sense of self-worth, Yatori tells Yurari, "You have nothing...but I love you anyway."
It's really ironic that we got a side story with low self-esteemed Yukari who wants people to notice him, when even most of the readers haven't given him attention.. I myself didn't even remember who he was at the beginning (￣∇￣")
I really liked the chapter though. You could immediately tell what was going to happen but I just felt so bad for Yukari anyways, he tried so hard.. at least now he has someone who loves him for what he is.. right? (￣▽￣ )