My Happy Marriage Novel Volume 8 is written by Akumi Agitogi with illustrations by Tsukiho Tsukioka.

During his student days, Kiyoka was invited by Yoshito Godou's father to join the Special Anti-Grotesquerie Unit. In this collection of short stories, the beginning of Kiyoka's military career and the nature of his connection with the Earth Spider are finally revealed! Also included is an episode from Miyo and Kiyoka's happy married life.