JIYUU KIMAMANA SEIREI-HIME

Jiyuu Kimamana Seirei-hime summary:

Olivia, the daughter of the Saifard family, endures insidious bullying from her stepmother and stepsister. However, she is powerless to resist because Olivia has become 【separated in mind and body】!
As a result, her body is in a perpetual state of emptiness. Despite this, she reminisces about her dear brother Sirius and her late mother, leading to sorrowful days.
Unable to find allies and tormented by bullying, one day, stepsister Anna makes a decisive choice regarding Olivia...
Embark on a suspenseful fantasy of dramatic reversals and deep affection!