Serpent's Abyss

Jaehyun, an ordinary college student, has recently suffered from an unpleasant dream, and in every dream a 'red snake' always appears. One day, Jaehyun, who was heading to his own room, eventually faints on the street and receives help from Suyeon, a senior who's not close to him. From that day on, Suyeon actively approaches him, wanting to become closer with Jaehyun...