I don't really loved it. There was these 2 tropes that were unresolved. The thing about the Senpai and Hotta-san wasn't supposed to be dating Kashiwagi just to piss off the girl? So they never made it clear to me that Hotta has really come to appreciate Kashiwagi for what he is, and they never made it clear either if Kashiwagi really have get over his previous partner. I mean both are a little wrong in their approach to the relationship, and they never happen to do something about it even before realizing it.
Kirakira-kun to Imaichi-kun