Mizuki Senpai no Koi Uranai

A high school sophomore named Sakagami Sojiro is late for school and picked up by a girl resembling a third-year student who claims to have perfect fortune-telling abilities. She predicts he is destined to be with a girl younger than himself, unaware that she is the one she refers to. This sets off a comedic romantic situation involving the awkward Mizuki-"senpai" and the oblivious Sakagami.