She simply wanted to pass her exams… but accidentally summoned a demon instead. Andrea who appears to be an ordinary college student, has a little secret. She comes from a family of witches and is still a beginner learning simple magic. One late night while cramming for her tests, she reaches for what she thinks is a memorization spell. What was meant to be a simple spell, turned into a summoning ritual that called forth a powerful ancient demon into her world.He is Kael, a white‑haired, golden‑eyed demon who is completely unbothered by human affairs. Bound by magic, he cannot leave until their link is broken. Now her quiet apartment has a new resident. One who sees no point in her studies, her worries, or her small joys. But as days go by, the cold demon starts to notice something he forgot long ago, the warmth of being alive.