Yūhei reijō no seirei kon ~ taiju no seirei ni dekiai sa rete imasu ~New幽閉令嬢の精霊婚～大樹の精霊に溺愛されています～; the imprisoned noblewoman and the great tree spirit

In a kingdom where the Great Tree of LifeFikas Velais revered as sacred, Almeria, the adopted daughter of a counts family, is treated with cruelty and disdain. She is accused of defiling the holy grounds for simply crossing the sacred boundary of the divine tree. Despite the isolation and the harsh treatment from those around her, Almeria tries to live quietly. But one day, she becomes entangled in a dangerous conspiracy tied to a deep secret surrounding the treeone that puts her very life at risk. And in a moment of despair, with danger closing in A majestic and mysterious entity appears before her the Great Spirit dwelling within the sacred tree.