Bulkkot ui Inferno

A self-absorbed high schooler named Kang Shichan is thrust into chaos when he becomes an unwitting bystander in a clash between demons. Suffering grave injuries that leave him on the brink of death, he is saved at the last moment by the demon Inferno, who merges with him to ensure their mutual survival. Together, they manage to win the battle—only to realize that their fusion is permanent. The sole path to separation lies in collecting one thousand Invento Hells and securing the correct resurrection spell. Now, Kang Shichan must navigate the deadly hunt for demons while trying not to let his school life fall apart.