Renowned composer Issac lives under the care of "Venus', a robot assistant who sees to his day to day needs. Venus possesses an advanced form of artificial intelligence, her admiration for Issac and his talent grows consequently falling in love with him. Unfortunately, the feeling is not mutual. Issac eventually meets his new girlfriend 'Yu' her appearance gradually replaces Venus in his day to day care. Issac's newfound happiness is shortlived and shattered due to a small incident. Who would have known Venus could never be replaced.