Hiro is a single young man, like many other high school boys of his age; and like other boys of his age, he has a casual relationship with five girls: Ichiru, Sayo, Miya, Momoka, and Ayano. Childhood friend Ichiru loves dinner dates; Sayo is compassionate towards animals and plays classical music; Miyo is popular and gets ample attention from the boys; Momoka is constantly harassed by children on her way to school; and Ayano is skilled at archery. With so many unique traits and quirks, Hiro has to be interested in at least one... right?
After the tragic death of his high school sweetheart, Mikami Tomoya just isn't the same. Dating has been scarce, and feelings have been buried. But what if Tomoya had a chance to date someone new? What if he had three choices, in fact? Memories Off explores one possible match in each episode of the OVA.
Keitai Shoujo and Memories Off are very similar, bearing a similar animation style (the protagonists even look vaguely alike), and a similar idea: each episode explores a possible relationship with a different girl.