Saihate no Kimi e

Overview

Ryou and his older brother, Masaya, live under the Takatou family. Sixteen years ago, their parents died in an accident, and since then, the brothers lived with their distant relatives, the Takatou family. As a child, Ryou grew up as the friend of the Takatou heir, Takatou Akihito. But when Ryou discovers a secret,his brother's life is on the line, and instead of being Akihito's friend, Ryou is now his slave. How will Ryou save both his brother and himself from the family that has cared for them for so long?

Source: AniList