A new romance between factory workers Yôji (Issei Takahashi) and Sachiko (Aoba Kawai) is going well -- that is, until aliens invade Earth and implant themselves into tumor-like growths on humans' shoulders. When Sachiko is attacked and transformed into a slave cyborg, it's up to the half-infected Yôji to rescue his lover. Co-directors Jun'ichi Yamamoto and Yudai Yamaguchi surround their tender love story with a rollickingly gross splatter-fest.