Dear Brother

In the intricate world of Sei Academy, a prestigious all-girls school, Nanako Misonoo finds herself an unwitting newcomer to a complex web of social hierarchies and unspoken rules. Her enrollment marks the beginning of a challenging journey, as she navigates the unique customs and intense emotional currents that define life within its hallowed halls, all while chronicling her experiences in letters to her "onii-sama." As Nanako strives to find her place among the elite and enigmatic students, she uncovers the subtle power dynamics and hidden rivalries that simmer beneath the polished surface of the academy. With each passing day, she grapples with the weight of expectations and the allure of belonging, learning that friendship and acceptance can come at an unexpected cost in this world of delicate social maneuvering.

✦ AI-drafted summary