In the year 20XX, Dr. Light’s robots were kidnapped & reprogrammed by Dr. Wily to gain him world domination. In order to stop Dr. Wily & the reprogrammed Robot Masters, Dr. Light modified his robot assistant, Rock, into a super fighting robot. However, Rock was severely incapacitated with the Robot Masters onslaught. Nonetheless, Roll, Dr. Light’s housekeeping robot & Rock’s sister, presented herself & is willing to be modified for battle, to save her ‘brothers’ & save the world from Dr. Wily’s evil scheme. Astounded by her compassion, Dr. Light transformed Roll into a super fighting robot girl! So Roll♥chan was born!