Acchi Kocchi

is a Japanese yonkoma manga series by Ishiki which began serialization in Houbunsha's Manga Time Kirara magazine from 2006. An anime adaptation by AIC aired on TBS between April and June 2012.

Plot
The serious-minded Io and the pure-hearted Tsumiki feel they never want to be parted, but haven't become a couple yet. More than friends but less than lovers, they develop an awkward quasi-romance.