The Succubus is a unique monster found in the dungeon. She is a mini-boss who is first encountered on the 8th Floor in the dungeon. She asks you if you could lend her Ceri for a short time, which will trigger a scene with the Succubus Ceri, or if refused, will begin the fight. After the fight Yomi gains access to teleport to 9th Floor of the Dungeon. Later on, she is fought again in the Abyss and joins the party to fight against Vesta. Note: Activating the scene will not automatically bypass the fight on the 8th Floor once it is done and it will send you back to the Surface. Properly beating her will give you access to the 9th.