Serie includes 35 albums .
Boku to Mamono no Naresome-Banashi Jinko-hen
Dokuzen Houi | Self-Righteous Besiegement =The Lost Light=
Dokuzen hōi
Higai Houkoku.Atlach.Nacha
Mamono Musume Souguuki Case: Dragon
Mamono Musume Souguuki Case: Ratatoskr
Mamono Musume Zukan II ~Monster Girl Encyclopedia II~
Monster Girl Encyclopedia Stories vol.1
Monster Girl Encyclopedia Stories: Harem of Collar
Monster Girl Encyclopedia Succubus Notebook