Seven Sisters Forced Me to Inherit a Trillion-Dollar Fortune

Jiang Chen was found by the richest family, and his seven sisters are giants in all walks of life. His sisters just want him to enjoy life, but he accidentally activates the system and can only complete tasks and obtain rewards by "spending money" for his sisters. As a result, Jiang Chen was forced to start a "painful" life of spending crazy money on his sisters, while himself getting richer and richer.