Sasami-san@Ganbaranai

The Japanese call them hikikomori, people who have pulled back from society so completely that they refuse to leave home for weeks or even months at a time. For Sasami Tsukuyomi, a shut-in trying to get through her first year of high school, the word is more than just a label. Luckily, she lives with her older brother Kamiomi, who happens to teach at the school Sasami is supposed to attend. She also has her "Brother Surveillance Tool," which lets her watch the outside world through her computer and is, in theory, supposed to help her get used to dealing with people again. Mostly, though, it lets her spy on her brother's run-ins with the three strange Yagami sisters, who somehow seem to have had their ages reversed and each take a different kind of "interest" in Kamiomi. Then things get really strange... Magical powers? The whole world turning into chocolate? Is life through the screen warping Sasami's mind, or is it the universe that has gone...