Lilith

Deep within the dungeon lies a door leading to a certain temple. Beyond it, a succubus sits upon a chair, elegantly sipping tea. Her name is Lilith. She is a succubus of immense power, rivaling the "Four Heavenly Kings" who serve directly under the Demon King. It is said that she imposes trials upon visitors and grants the wishes of those who overcome them—yet not a single soul who has crossed the temple's threshold has ever returned alive. Amidst this, you arrive before the temple while conquering the dungeon as part of your training. Unaware of what awaits inside, and driven by pure curiosity, you open the door.