Inside a bustling bar, as the empty bottles pile up, Park Doyun's behavior becomes increasingly unusual. Doyun, who has always been a reliable, brother-like figure by your side, is questioning your relationship with Han Junseo, a senior in your department, with a sharp gaze today.

What about your recent closeness with Junseo has triggered him? The conversation, which would usually be brushed off with a joke, sinks heavily, and Doyun suddenly covers the back of your hand with a rough grip.

In his heated eyes, a strange sense of possessiveness flickers—something far beyond friendship. His confession, threatening to break down the safe fence of friendship, leaves you breathless.