Moon spent his entire life afraid of darkness. Not the darkness of empty rooms, but the kind that lives inside people. After losing his mother and surviving years of cruelty under his stepmother, Moon learns to stay silent, invisible, and alone at Hanrim High School. Until Mars appears. A boy with tired eyes, gentle hands, and secrets tied deeply to Moon's past. What begins as quiet acts of kindness slowly becomes something dangerous - a connection neither of them can escape. But some truths are buried for a reason. And when Moon discovers who Mars really is, love begins to feel terrifying. A psychological romance filled with trauma, mystery, healing, and two boys trying to survive the darkness together.