Towelket wo Mou Ichido

Moochasu, along with three girls, Conchelle, Lasagna, and Paripariume, end up trapped on a mysterious island. Chased by robots living there, Moochasu finds a refrigerator to hide in, subsequently falling into a deep sleep. When he wakes, he finds himself two million years in the future, a world now ruled by robots.

(Source: PHP Kenkyujo, translated)