Reirin

Reirin is a princess from one of the five noble families (specifically the Kou clan, aligned with the Earth element) in the fictional Kingdom of Ei. She is widely known as the "court butterfly" due to her immense beauty, grace, and kindness, making her universally beloved and the top favored candidate to become the next empress and marry the Crown Aftermath & The Ultimate Irony: ​Reirin wakes up trapped in Keigetsu's body down in the dungeons, immediately blamed for the assassination attempt on "Reirin" and facing execution (such as the dangerous Lion's Judgment). Furthermore, a spell placed by Keigetsu initially prevents her from easily telling anyone about the switch Unyielding Optimism & Resolve: Having spent her entire life managing a severe, debilitating illness, Reirin possesses a remarkably tough mental core. She does not panic when faced with extreme crises—such as being thrown into a dungeon or facing execution—instead viewing hardships through a pragmatic and positive lens Joyful and Free-Spirited: Once she inhabits Keigetsu's healthy body, her personality shifts into an infectious, high-energy enthusiasm. Freed from the exhaustion of chronic frailty, she throws herself headfirst into physical activities she could never enjoy before—such as eating hearty meals, energetic gardening, and moving around with unbridled joy Beware the Nice Ones": While she is remarkably forgiving toward threats against herself, she harbors a fierce protective streak for others. If anyone dares to cruelly mistreat or harm those she cares about, her gentle demeanor vanishes, revealing a shockingly intense and intimidating side that strikes genuine fear into those around her Needlework & Embroidery: Her skill with a needle is exceptionally high, praised as being on par with legendary weavers