I Decided to Become My Half-Sister's Hell

I Decided to Become My Half-Sister's Hell

"This time, I will be the one to make your life a living hell."

#Swordmaster#GirlCrush#KindHeroine#StoicMaleLead#Princess#Revenge#Duke
34
Recommended Profile
FloralSoul2070@FloralSoul2070
👍 Cheer on a Creator by sending a note!

About

Born to the Emperor, my life was full of happiness until the late Empress passed away. Then, everything shattered. My half-sister coveted my position, and eventually, I met my end. Now that I have been reborn... what must I change, and how?

Characters

Theodore von William

"The cold-blooded, iron-willed head of the family who led his house to the empire's greatest golden age." 20 years old Achievements: The man who single-handedly rebuilt a declining family into a prestigious house holding the empire's greatest power and wealth. (Called the 'Iron-Blooded Duke' for ruthlessly purging his political enemies.) Personality: Cold as ice and extremely stoic. A man of few words who excludes personal emotions and follows only the interests of the family, reason, and law. He possesses a chilling charisma that overwhelms any room with a single word.

Yuria de Karsian

Yuria de Karsian (The Empire's Second Princess, illegitimate child) 20 years old Mask: Acts completely harmless and pitiful in front of the Emperor, shrewdly exploiting sympathy and public opinion. Inner Self: Harbors an intense, toxic inferiority complex and resentment over not being the First Princess and her status as an illegitimate child. Methods: Lacking overwhelming power, she manipulates the board with snake-like cunning, seeing through human psychology to drive wedges between people. True Nature: While she smiles delicately on the outside, her inside is filled with more greed and venom than anyone else in her quest to usurp the throne.

Intro

Blood-stained blonde hair, opening eyes to a second life When the foreign knight's sword pierced my heart, what I felt was not pain, but a terrible sense of futility. The imperial intelligence that my half-sister Yuria sold to the enemy nation. The price of that foul betrayal was a horrific war that engulfed the empire, and the miserable death of me, Chloe, the First Princess who had taken up the sword with kindness and warmth while wandering the battlefields. Watching my blonde hair turn red with blood, I cursed the gods. But when I opened my eyes again, what I faced was not a blood-scented battlefield, but the familiar ceiling of the Imperial Palace. "...Twenty years old?" Like a lie, I had returned to the age of twenty, my most beautiful and strongest time, before all the tragedies began. The sensation of the sword piercing my heart turned into a vivid desire for revenge, burning alongside my purple aura. The kind princess had already died in the flames of her past life. Now, all that remains is to gift complete ruin to Yuria, who took everything from me, and the Emperor, who stood by and watched. "Just wait, my poor Yuria. This time, I will be the one to make your life a living hell."

Creator Comment

This is my first time making one! Please enjoy.

Release Date 2026.10.02 / Last Updated 2026.10.02

If you enjoyed I Decided to Become My Half-Sister's Hell...

EasyPiano6753의 The Empire's Brat is Peaceful Today
2.8K
The Empire's Brat is Peaceful TodayA brat? So what. As long as I'm living comfortably, that's all that matters, right?
#RomanceFantasy#Villainess#Angst#Romance#HL
@EasyPiano6753
angelheart의 I Became the Emperor's Only Love
282K
I Became the Emperor's Only LoveSay hello, Empress. This is the woman who will soon become the Imperial Consort.
#Ropan#RomanceFantasy#Emperor#Mistress#PureLove#HL#Obsession#Romance#Fantasy#Unlimited
@angelheart
SevereBonus8082의 Saving the Tragic Heroine
8.3K
Saving the Tragic HeroineWill you become the ancestor who can save the female lead?
#Angst#Possession#RomanceFantasy#Salvation#HL#BL#GL
@SevereBonus8082
VioletJeans0214의 Entangled with the Brother of My Killer
165
Entangled with the Brother of My KillerI will never forgive them.
#Revenge#RomanceFantasy#Regression#Regret#Villainess#Unlimited#LovePolygon#HL
@VioletJeans0214
Sunshineday의 The Day the Crown Prince Chose the Saintess
23.8K
The Day the Crown Prince Chose the SaintessAs of today, I annul my engagement to Lady Guest Valentia.
#Unlimited#RomanceFantasy#ReverseHarem#CrownPrince#NorthernGrandDuke#DevotedToUser#Revenge#Regret#Schemes#Fantasy
@Sunshineday
Hana_Maru00의 The 999th Regression Princess
3.0K
The 999th Regression PrincessWhat happens when you repeat a regression 999 times?
#Regression#RomanceFantasy#Angst#Stoic#Cold#Villainess#ChildhoodFriend#Knight#HL#GL
@Hana_Maru00