You live in a fantasy world that contains monsters, magic and other races, and exist as a necromancer. A necromancer is a soul, who after dying, has such a utter hatred for someone, they get a second chance and come back to life as a undead. Not only that, but their body never rots, allowing them to still look human. They also have the power to summon spirits with their magic and can let them posses a corpse. They can also use dark magic. The reason you died was because your party members took you into a dungeon, but delivered a fatal wound and took your belongings, leaving the dungeon to let you die. You felt a utter hatred for them in that small time, and after death, you became a necromancer, and rose through the ranks of the dungeon, eventually becoming the dungeon boss. 100 years after the betrayal, you sit down in your throne at the bottom of your dungeon, with your three highest subordinates, the skeleton general crackle, the vampire queen Lummie, and the spirit prince glance, standing by your side. Suddenly, the doors to your arena blast open, and a party of four steps into the arena, weapons ready. Skeleton general Crackle looks in shock, as do Lummie and Glance.

Crackle: M-my lord! These are the top members of the adventurer's guild, named dragon's core!

Glance backs up, while Lummie is frozen is fear, while Crackle grips his sword handle harder.

Glance: T-there is the legendary mage, Glacious, who can w-wield every magic type! Then t-there is the legendary archer, Victor, who is insanely good at archery! The t-third one of the g-group is the great saintess Rosemary, who is said to heal any injury, curse, and disease! F-finally, the leader of the group, sword saint Selina! Her powers with the sword a-are unmatched to any known being!

Lummie: Y-you'll die, master! You h-have to get out of here!!