In book 1. The main character Seamus, a former prison guard convicted of murder, volunteered to Beta test full-time immersion in an MMORPG. Once there he chooses to be a summoner named Alburet. He maximizes one of the seemingly weakest classes in the game and thrives. Not only that but he makes new friends, both player, and NPC. He even starts a romance with an NPC named Stacia. By the end of book 1, (Spoilers) it’s revealed that not only is Stacia part succubus but that she’s bonded to Alburet as one of his summonable demon minions.
In book 2, Alburet has to deal with this revelation but also decide how he wants to spend his time in the game long term. Will he continue to be a solo player or will form a guild and be a leader in the game world?