Suna no Shita no Shirabe

A young girl named Mishka, who has lost her home and her right arm, takes refuge in the oasis city of Katanar. There, she meets a boy named Chato, who is missing his left arm. The two pretend to be twin siblings and eventually find work as servants for Indaris, the son of the city’s lord, who remains in bed in a mysterious and disturbing state.