Partner of the Strongest NPC Player

After Genesis, a world wide incident where a system was introduced and came to the world. Virtual reality and the real world became one. Within Nexus, a subspace similar to a fantasy video game, we follow Mia who, after entering a hidden dungeon encounters Jin, a former player who became an NPC after a incident within Nexus. Adventures, mysteries and revelations await them in the vast world created by the system