Homunculus Manga Omnibus Volume 3 collects volumes 5-6 and features story and art by Hideo Yamamoto.

Nakoshi faced the robot yakuza and the high school girl made of symbols head on—and in doing so, rid them of their monstrous traits. But now those twisted attributes have transferred to Nakoshi! To get closer to the truth about himself and his new, disturbing reality, he confronts the homunculus of the med student who started it all...Ito.