little_black_horse

When the Midnight gate open, creatures of the dark flood into the world—beings that only Daemonists, summoners of astral entities, can kill. Shaan awakens as one. But instead of a normal ability, his System grants him a unique skill: [Aspira Ignis] — Power rises with the user’s fighting will. Side Effect: Insanity Level increases. In his first life-or-death battle, the skill ignites, saving his allies… but pushing his mind toward madness. To survive, Shaan must control the power— or the power will consume him from within.

A mysterious pandemic called "Kleine-Levin Syndrome" has infected nearly half of the human population, causing terror around the world. As the pandemic worsened, a famous gaming company created a game called "FOS" (Fantasy Online System), which successfully lowered the level of fear and depression among everyone around the world. One day, a high school student named Ethan received a mysterious message while playing FOS from someone named Athena. The message referred to the location of the cure formula to end the pandemic, which was inside of the game. But, it turned out there was a wicked side that was after the formula. Would Ethan manage to find it and end this pandemic?