Tomoko-chan's Manga

Can I just say...if Kusakabe won't end up with Azusa or even play an actual role that will challenge/change /or do anything really about Azusa and Karino's dominion relationship, why the hell did that author introduce him in the first place? If it's just a manga about Azusa realizing and embracing how utterly powerless, useless and depressing his existence is, staying as a slave beneath the soles of Karino, then really...is there any substance that actually lies on this manga? And if it's just a manga wherein Azusa realizes he's just not this useless piece of shit because it turns out there was someone like Karino who really treasured him, then I greatly overestimated the ability of Ogawa Chise.