Welcome to Wagnaria: Takanashi Goes to Work.
A high school boy that loves small, cute things starts working at the family restaurant, Wagnaria, a nest of abnormal fruitcakes. Just as he is acclimating to his new environment, he meets a young woman who will alter his fate for good. Source: crunchyroll
Aired 06/03/2010EP 1 - Welcome to Wagnaria: Takanashi Goes to Work.

2010
Wagnaria!!
Set in a family restaurant in Hokkaido, the northern prefecture of Japan, 16-year-old high school student Souta Takanashi works part-time along with his strange co-workers: Popura Taneshima, a high school girl who's a year older than Souta, yet easily mistaken for an elementary/middle schooler, and Kyoko Shirafuji, the 28-year-old store manager who doesn't bother to do any work at all.
(Source: NIS America)