Chitose Get You!!

Chitose Get You!! (ちとせげっちゅ!!, Chitose Gecchu!!) is a Japanese yonkoma manga series written and illustrated by Etsuya Mashima. A 26-episode anime series by Silver Link that aired between July 1, 2012 and December 24, 2012.

Plot
Chitose is an 11-year-old girl who is madly in love with an older guy named Hiroshi. He works at the town hall right next to the school and Chitose spends every day relentlessly pursuing him. Can Chitose ever convince Hiroshi to go out with her?