Pink Heart Jam manga volume 2 features story and art by Shikke.

FINAL VOLUME!

Haiga is further overjoyed when during their club's music camp, he's able to perform together with Kanae, and it's during this time that he finally realizes his feelings for the upperclassman go beyond simple admiration. But his joy is quickly negated when his crush tells him to stop coming to the brothel. Is Kanae simply concerned for Haiga's health because of how hard he's been working so he can afford to see him, or could it be that Kanae has finally found his special someone and left the brothel altogether?