Copyright: haruki no saidai no teki wa risei
A Japanese-language visual novel by Dangan and Niyatoki/Toki (tokinokogiri), title translates to "Haruki's Greatest Enemy is Reason". Has the sub-title "Two Beasts or not To Beast!!", in English. Sometimes abbreviated to KiNoSei (キのせい).
The story revolves around Haruki Tagokoro, his stepmother Madoka Tagokoro, stepsister Anne Tagokoro, and friend Kasumi Yumeura, all designed by Dangan. Supporting characters are drawn by various kemono artists, as follows:
Momo Fugashi: Kishibe
Tsarin Korniyenko: Niyatoki
Yukino Hariba: Mabo
Whibbet Massaferrer: Sindoll
Cha-ko: Kiichi
Mami Ohagiwara: Kame 3
Kanae Kunima: 7010
Rai Hijima: Bebebebebe
Kini (haruki no saidai no teki wa risei): Ro
Hyuri Kanya: Suurin
Chifuru Furumi: Yoona
Tome (character): Ohakotome
Horobi Alduin: Dangan