The main character, Rhea, who participated in the open beta test of the new VRMMORPG ``Boot hour, shoot curse'' acquired the hidden skill ``Engagement''.In this game, there is no [level] or [job] system that is common in games, but instead, the acquired [experience points] are used to acquire skills and increase the status. ``Engagement'', which allows you to collect all the experience points you have gained, was an incredible skill. Rare uses "Emissary" to make the NPCs and monsters she meets one after another her followers. As a result of continuing to strengthen himself and his subordinates with the ever-increasing [experience points], he was judged as a ``specific disaster creature 'demon lord'''...!? The VRMMO conquest story by the final boss-class protagonist begins here!!