Kuro Gal a La Carte 1

Sanjo Rina, a dark-skinned gal, secretly has feelings for Narazaki Zen, her younger childhood friend who is uncool and boring. Zen is forced to cosplay as a bear, and Rina is soothed by the sight of him in it. They've been playing dress-up since they were little, and as an extension of that, she's been sucking Zen's dick. They've been doing that for a long time. But Zen says he wants to end their relationship... What will she say?