An extended version of the second season's first episode, which is under the same title.

Ever since she was young, Yuno has always had an interest in art. Now that she has been accepted to Yamabuki Arts High School, it means one thing—moving out. Living in a dorm at Hidamari Apartments alone, Yuno meets her neighbors: the hyperactive Miyako, the self-conscious Hiro, and the mature Sae. Despite their different personalities, they go to the same school, spend time together, and develop a strong friendship. Yuno's life won't be so lonely after all! Hidamari Sketch revolves around the antics and day-to-day lives of the girls living at Hidamari Apartments. [Written by MAL Rewrite]

The anime centers on the graduation of Sae and Hiro.

After passing her entrance exam, Yuno enrolls at Yamabuki High School as part of an art degree. She stays at the Hidamari Apartments along with best friend Miyako, and seniors Hiro and Sae. Each episode follows a day in her life as she mingles with her friends, close peers, overly hyper teachers and closely follows the mundane lives of the high school girls. (Source: ANN)