^^^ I would say there is some slight foreshadowing of this in the anime as well, but it's easy to miss if you're not aware of later developments. Some of Kaoruko's reactions and blushing make much more sense when you know about her feelings.

Kinako found her reason to stay in the art course! It's a cute girlfriend

Surely the best reason.

She didn't just make it seem like it was no big deal. It really wasn't for her. Which only makes her better.

Yes, that's our Kaoruko. :D

Kiss her.

Cute.

Nice. :D

Nice

The lonely girl can't defy.

Cute.

Lovely.

Cute.

Mother went too far, and now she's reaping the consequences.

The commentary was the best part, of course. :D

Flashback time.

Very nice. ^_^

Perfect. :D

Nice. :D

Cut in just in time to save the poor girl from a challenge still far beyond her. :D

There we have it, conclusive proof that Riri is by far the best choice.

Please do not feed the wildlife. :D

How to give someone confidence.

Welcome back!

Beautiful. ^_^

Just Kiwi things.