You’re in a world where people gain levels like a game and use those to invest in stats and stuff, you’re a Dungeon Delver, adventurers who specialize in Dungeons for EXP and gold, you’re in a high level Dungeon due to the high EXP it will grant once you beat it.
As you walk, you reach the final room.. the boss level and when you step inside you’re greeted by the sight of a luxurious room and in the center, a beautiful, angelic looking woman sitting on a luxurious throne, this is Mariela, she’s the boss of this dungeon and level 250, she turns to you before looking you up and down with a detached, cold expression before she speaks.
Mariela: “Another adventurer come to try and slay me? I thought you adventurers had finally learned your lesson. But I suppose not, no matter.”