Haruno Kasumi is a fourth-grader. Her parents are zoologists who went over to Africa to carry out their research studies. In order to see off her parents, Kasumi arrived at Kasumi Town. In the middle of the town lies an enormous mansion surrounded by the forest. The mansion belongs to the Kasumi household, the family in which Kasumi will be lodging in and taken care of. There is a mysterious aura about the mansion and Kasumi discovers a series of talking appliances. The Kasumi family refers to these creatures as "Henamon". In return for living in with the family, Kasumi will be helping out with the household chores such as cooking and washing. Surrounded by various interesting characters, Kasumi begins a new chapter in her life.

Saki picture drama included in the DVD volumes 3 through 9.

The science lessons are short "omake" bonus features originally present on the first two volumes. Each short lasts around two minutes, and stars super deformed versions of Noriko, Kazumi and the Coach explaining the various scientific aspects of the series. (Source: Wikipedia)

High school student Makoto Itou first notices Kotonoha Katsura at the start of his second semester, freshman year. Immediately, he becomes entranced by her beauty, but his bashfulness doesn't allow him to approach her, even though they ride the same train every day. Instead, he snaps a photo of her in secret and sets it as his cell phone's wallpaper: a charm that, if kept under wraps, would supposedly help you realize your love. However, classmate Sekai Saionji spots the picture, but instead of ratting him out, she offers to help set him up with Kotonoha—going so far as befriending her just for him. Thus, the trio begins a rather impromptu friendship. School Days follows the lives of these three teenagers as they traverse the joys and hardships that come with being a high schooler. In a story alive and brimming with romance and melancholy, the tale of these three students will linger in memory long after the momentous conclusion. [Written by MAL Rewrite]