World technology has advanced significantly. Alongside this came the release of an extremely advanced game across the globe. This game is called THE ETERNUM, a virtual reality game that utilizes an extremely advanced technology. All players of this game are transported into a fantasy role-play game world. Players of this game are implanted with an advanced microchip at the back of their heads. It connects to the human brain, allowing a player to experience real sensations inside the game. Players insert a piece into an advanced game console box to activate the microchip game in their brain and enter the game world. THE ETERNUM is inhabited by various players from different parts of the world and advanced CPUs with their own independent thinking, much like real humans.

Student need to finish the weird project. it's called couple sensor. the mechanics is sounds easy. living together in apartment, and do a couple role play. Included there is Jxuel, a known as a famous trouble maker in entire U-han University. Since the couple sensor project started, many things have happened in Jxuel's life. The women around him developed feelings.