Included in Isshou Suki tte Yutta jan one-shots collection.

In the "mechanical girls" story, two high school girls discover a shabby machine in the back of a barn and it leads them to a strange world. (Source: ANN)

Usagawa Rinne, a normal female high-school student, spent happy days with her lover, Sakaki Guryuu. However their peaceful days were suddenly shattered. On the night of Sakaki's birthday, Sakaki witnessed Ri...