Ritsuko is serving the princess Mariel. Mariel falls for the charms of Gargantua, now an alchemist. His attempt to sacrifice her is foiled by Ritsuko, but the princess is rendered half demon and takes her own life.
Hazuki and Lilith reach a prehistoric world. Lilith is mistaken for a god. A cavegirl named Quill develops a crush on Hazuki, offering herself up as a sacrifice. The real god appears but is defeated by Hazuki; the search is another dead end.
Milka is saved by her white tiger. Arya reveals that Seiren was a demoness spawned by Lilith. Seiren was only interested in harnessing Milka's power. Hazuki and Lilith give their boat to Milka and return to the Great Library.