Shoukoujo ~Watashi o Wasurenaide~

Main character is an angel apprentice who got down to the lower world to take the final exam. He possesses the body of just died in accident son of the chairman of the Morioka Group, a major home electronics manufacturer. He gets acquainted with a girl at father's sponsored party. A month later the same girl becomes a new servant at the mansion. Main character has the power to change the fate of the unfortunate girl. But what will he do?

[From vndbreview]