She fell from the clouds to the mud, became an official slave, and was sent to the border. He, the lowest slave in Kushui Town, had a birthmark covering his face and no one cared about him. They met each other in hardship, supported each other, and relied on each other. He is the only rock she can rely on, and she is the moonlight he only dares to look up to.
Concept: Moonlight in suffering