Boku no Goshujinsama☆ - As You Wish

Synopsis

A little boy named Shinobu has lost his parents. He decided to stay under his distant uncle's care. When he comes to the house the uncle gives him his room and rol him NOT to enter a room in the center of the house. Shinobu later on relises that his Uncle sneaks into that room every night, what is he upp to? (Source: Mangafox)