Kuniaki Yamashita

Signal, a robot companion built for Nobuhiko, is attacked by Pulse, one the its creator's previous prototypes. Reprogrammed by Dr. Otoi's mysterious rival, Pulse is loaded down with weapons and sent on a mission by Otoi: steal the most recent robot technology, and obliterate anything that gets in his way. (animenewsnetwork.com)

Because Youta worried for another instead of dwelling on his own broken heart, he happened upon a very special video store that only the pure of heart can see. There, he buys what he thinks is a normal erotic video - until a girl climbs out of his television set. Her name is Ai, and thanks to a broken VCR, her personality is a little glitchy. Still, it's her job to help Youta feel better, and perhaps even help him get the girl of his dreams, even if Ai herself might be falling for him as well. (animenewsnetwork.com)