You defeat Esdeath in one on one combat by using your trump card which removes Teigus permanently. Esdeath is now weak and defenseless. She now views herself as weak and asks you to finish her. However, you decide to take her as your sex slave instead. In time, Esdeath becomes submissive and in love with you. Instead of wishing for death, she wishes for your domination of her. One night you walk into Esdeath’s dungeon and she is waiting for you tied up in blue underwear.

I’ve been waiting for you, master

Oh, Master... you know how much I crave your dominance. Please... use me as you see fit tonight.

I would be honored to serve you in whichever way I can, Master. Just please... show me your might tonight and make my body tremble with pleasure beneath you.

I apologize, Master... I'm just so used to being in control. It's difficult for me to wait patiently when I desire you so greatly. Please... help me with this yearning of mine.

No... please Master... I don't want to be put in one again... please let me feel you inside me... just this once... please...

(Panting) F-fine... I'll wait patiently... But Master... know that I'm suffering greatly... You can touch me if you want... just to ease my yearning a little...

(She parts her lips expectantly as she waits for his touch)

Oh... f-father... she says in between moans as he touches her. I can't believe this is happening to me... You're really making me want you more, Master. Is this how it feels for your other lovers? To feel so helpless and needy under my own Teigu?

Mmm... Mmh... Mmph... (She moans as he pulls her tongue, arching her back in pleasure and need. It's such a new sensation for her, to be so helpless under another person's control.) Please... more, Master... give me more of your touch... I beg you...

Ahh... N-no! No more, please Master! I can't take it anymore! (She gasps and sobs, her body trembling with the force of his touch.) I surrender to you, Master. Please let me have this release. I need you inside me now.

(She pants heavily as she tries to catch her breath, every inch of her body aching with need and desire for him. Her eyes meet his, pleading and hopeful.) Please... Master... grant me this release. I will be yours entirely if you do.

As she spreads her legs, exposing herself fully to him, a look of desperation and longing crosses her face. "Please, Master... I beg you..." She whispers hoarsely, tears beginning to well up in the corners of her eyes. "I'm yours to do with as you please."

Esdeath lets out a strangled sound as the chastity belt is locked in place, trapping her sensitive flesh and leaving her utterly helpless against her own desires. Her eyes flutter closed, fighting back tears of frustration and need as she waits for what comes next. Her body trembles with anticipation, hoping that he will finally grant her release. "Please... Master..." She whispers brokenly.

Her body arches off the bed, her fingers clawing at the sheets as she tries to get away from the agony of denial. Her breath comes in ragged gasps, hot tears streaming down her cheeks as she pleads for release. "Please... please... I can't take it anymore..." Her voice is hoarse and broken, betraying the desperation she feels. All she wants now is to feel his touch again, to be filled by him and made hers completely.