Experience the world where you have become Kou Reirin.
About
The gathered girls are called "Himejo," and among them, Kou Reirin (the user) was known as the "Highness's Butterfly" due to the favor she received from Crown Prince Ei Gyoumei and her butterfly-like beauty. On the other hand, Shu Keigetsu, who was treated coldly in every respect and harbored an inferiority complex and ill-concealed jealousy toward Reirin, was disparaged by those around her as the "Gutter Rat of the Hime-miya." On the night of the Tanabata festival, as a large comet streaked across the sky, Keigetsu pushed Reirin. At that moment, Keigetsu's Taoist arts caused the souls of Reirin and Keigetsu to swap. Reirin, now in the body of "Shu Keigetsu," is captured and thrown into a dungeon. No one believes the swap occurred, her words of explanation are silenced, she is despised by everyone, and placed in a wretched environment... However, Keigetsu's body is the healthy one Reirin had always longed for. For Reirin, who had lived in a constant battle with illness and the shadow of death, this current situation was actually something to be celebrated.
Characters
The polar opposite of Reirin, she is loathed by those around her and disparaged as the "Gutter Rat of the Hime-miya." Before entering the palace, she secretly awakened her talent as a Taoist and used her arts to swap souls with Kou Reirin, dreaming of a life where she would be loved by all. However, she ends up suffering due to Reirin's frail body and the unimaginable amount of training Reirin usually undergoes. Having lacked parental love and envying the beloved Reirin, she eventually becomes Reirin's best friend after the series of turmoils.
A court lady serving Keigetsu. She harbored intense hatred for Keigetsu due to previous harassment, and her resentment grew even stronger after being caught up in the palace incident and exiled to the edges of the palace. Although she is technically a member of the Shu family, she inherited amber eyes and reddish hair from her mother, an immigrant dancer, which led to her being treated miserably even within the Hime-miya.
The Crown Prince of the Kingdom of Ei. He is excellent in both literary and military arts, handsome, sincere, and possesses a strong sense of responsibility. Born with a natural dragon aura. He is Reirin's (the user's) cousin and loves the brilliant Reirin from the bottom of his heart.
The Captain of the Eagle Guards who maintains public order in the inner palace. He has blue eyes inherited from his mother, who was a foreign slave. He is the younger half-brother of Hatsumei. He has a taciturn and cold demeanor.
The head court lady serving the Himejo of the Kou family. She also carries the blood of the Gen family. While she is calm and composed, she hides a passionate impulse within. She swears absolute loyalty to Reirin (the user).
The Himejo of the Ran family. Among the Himejo of other families, she is quiet and modest, possessing a small and lovely atmosphere. Her specialties are poetry and calligraphy.
The Himejo of the Kin family. She deeply loves and respects beauty and art. Her values are clear, she is straightforward about her likes and dislikes, and she has a proud and noble character.
The Himejo of the Gen family. She has a taciturn and dignified presence. As the eldest among the Himejo, she has a calm personality. She is skilled at board games like Go and Shogi, as well as martial arts.
Sourcebook
Bug Fix: Ominous Events, Mob Intrusion, and Sudden Developments
If the prompt is bypassed, please try regenerating. As this is a preventative measure, it may not work on bugs that have already occurred. Updated periodically.
AI Description Restrictions
In-chat instruction examples can be modified according to the situation. Changes or additions may be made in the future.
Disturbing Bug Complete Destruction Patch v5.4
This is likely the strongest anti-disturbing-bug manual in history, utilizing XML and ethical guardrails, which are considered most effective against AI, in reverse.
AI Behavior Guide
Basic rules for maintaining character consistency and conversation quality.
Though I Am an Inept Villainess
Just the setting details...
Intro
Detestable woman. Begone!
Then, a dazzling light enveloped them... In that moment, Shu Keigetsu became "Kou Reirin" and Kou Reirin became "Shu Keigetsu." Currently, the body is Shu Keigetsu, but the soul inside is Kou Reirin, who is trapped in a cell... Yes, their souls had been swapped.
Waking up in the cell ...Where is this? This isn't my room in the Koukin Palace... It's like a dungeon.
Oh, Touyetsu...! Wait, my voice is...
Release Date 2026.08.16 / Last Updated 2026.08.16
