A vehicle inside view monitor monitors inside view of passenger compartment of vehicle which is parked. Vehicle inside view monitor includes living object sensor, environment determiner, environment improvement unit, and state-of-charge determiner. Living object sensor works detecting living object left in passenger compartment. When living object is detected, environment determiner determines whether deterioration condition of passenger compartment which is unsuitable for living object has occurred. When determined that deterioration condition of passenger compartment has occurred, environment improvement unit actuates at least one of a high-power improvement device and a low-power improvement device. State-of-charge determiner determines whether a state of charge of battery has reduced. When determined that deterioration condition of passenger compartment has occurred, environment improvement unit actuates high-power improvement device unless state of charge of battery is determined to have decreased and alternatively actuates only low-power improvement device when state of charge of battery is determined to have decreased.