Bruises don't show in daylight

Yuna lives two lives.

One in classrooms, where she's known for good grades and quiet smiles.
Another after dark, where pain is currency and survival is earned with fists.

When rumors of Union follow her into a new school, the line between day and night starts to blur.
Old wounds resurface. Dangerous attention follows.
And some people are far more involved than they seem-including Seongje, whose presence is both a challenge and a strange comfort.

This is a slow-burn story about violence, loyalty, and the things we do to survive-
even if it destroys us from the inside.