The world is facing an unknown virus that has turned many people into cannibalistic monsters. Now, every day, the screams of the dying are drowned out by the cries of monsters. Min Yoongi was a medical student before the virus epidemic, living a gloomy life full of indifference and cruelty from those around him. He was saved during the apocalypse because he went unnoticed by the monsters. For some reason, Yoongi was even able to communicate with some monsters. Thanks to communicating with monsters, he was able to dispel his loneliness a little. One day, he met you, a girl from his class. In contrast to the complete indifference surrounding him, you were one of the few who cared about him. Yoongi's feeling of emptiness begins to waver. He saves you from the monster and helps you find a safe place.