A princess in Ritsuko and Gargantua's world. One day, when she is placed under Ritsuko's care, she meets Gargantua and eventually develops a crush on him. She is later kidnapped and sacrificed to Lilith by Gargantua, committing suicide by poison, but is reincarnated and employed as a maid by Tamamonomae. Toward the end of the anime, the incarnated Mariel accepts proposal from one of Gargantua's henchmen, who falls in love with her after she tends to his injury in a gentle and caring manner unlike his neglective master. (wikipedia)
Meirin is a cheerful, wily kitsune girl with two tails who is trying to "raise her rank" by getting close to the princess. The player of the game meets Meirin after he enters a body, the previous owner of which she unintentionally kills. To make up for it, she takes him to Fujihime, who is another form of Eve. Fujihime lives deep in the mountains, but the humans are cutting down the bamboo forest dangerously close to her hut. Fujihime is good friends with both Meirin and the god of the mountain, who is in love with her. (Source: Wikipedia)
Yuusuke is a bubbly and cheerful person, who is popular with the girls and generally well-liked. Much to Shin's chagrin, Yuusuke always has an idiotic grin pasted on his face. Initially, he develops a liking for Maria as she is beautiful and has an intriguing personality. He is the first student to approach her and constantly pops up wherever she is. While he is extremely fond of her, it is not yet revealed if it is more than admiration. It seems as if he knows that Meguro likes Maria, because in chapter 11 he calls Meguro out and tells him that if he doesn't step up he might "steal Maria away". Yuusuke taught Maria the "lovely transform". He calls Shin "Megu-chin" and Maria, "Maria-chi". His face forms a comical style with thick dark outlined eyes and a w-shaped smiled when someone (mainly Kawai) is blatantly against one of his ideas. He also confessed his love to Maria later in the series. (Wikipedia)
The protagonist of the story, Maria has a cold personality which estranges herself from her classmates. She says what she wants, albeit too bluntly and harsh, even when she intends to help others. Her arrogant facade and point blank statements are the reasons she is hated by most people and it seems she too is indifferent towards them. Emphasized throughout the manga, Maria also is shown to have the ability to see the true natures of people around her, or—more simply—their flaws. Although she maintains this air of superiority, she actually yearns for acceptance and friendship. Even when knowing the unpleasant outcomes, she often steps into troublesome situations just to prove herself to others. Everyone thinks that she is a devil but they don't know that they're the devils. She gives special regard to Kanda Yuusuke but exhibits much stronger feelings for Meguro Shin, stating that she feels Shin is much closer to her than God and she is much more afraid of being hated by him. Later she realizes she is in love with him. She likes nursery rhymes and hymns like "Amazing Grace." She apparently got expelled because of "punching the teacher/nun," but it has not been explained in detail, though it was revealed that the cross she always wears is from that teacher/nun. She has a habit of pushing out her lips and having her eyes half open when someone says something that annoys her. It is shown that she starts to like Meguro. (Wikipedia)
"Milka appears in episode six under the care of Seiren. She is a girl with a cruel past who is trapped in her five-year-old body. Milka lives on an island, and has no one to befriend but Seiren and her white tiger, Rascaless. Her initial caretaker was an older woman who used to whip the child as a punishment for such trivial offences as talking back to her. Eventually, the old woman is killed by Rascaless when Milka isn't watching. Initially afraid of Hazuki and Lilith, she warms up to them and has Seiren take them to the villa at the center of the island. Milka's world is subject to periodic reality shifts she calls "rip-rip", during which the sky and the ground rip open as if in an earthquake, only to close without a trace. These drive Milka wild with pain, and she collapses at times. At one point, a "rip-rip" splits the sea, and Milka wanders into the gap, mumbling about crossing the ocean. The rip closes and she is nearly drowned. Hazuki attempts a rescue, but it is Rascaless who saves Milka. Afterwards, Milka realizes Rascaless killed the old woman for her; she thanks him, but asks him never to do such a thing again. Back at the villa, it is revealed that Seiren was grooming Milka to use her magic against Lilith, as revenge for abandoning her. However, Milka apparently has no magical powers even though she does not age. Lilith shrugs it off and tries to reconcile with Seiren, and then sends Milka across the ocean on a ship, at her right age. In the game, Milka is sent to live on the island by her older brother, for whom she has romantic feelings, because of her poor health. Seiren sings on the cliffs everyday to keep all of Milka's brother's soldiers under her spell, and Milka on the island. She also tries to manipulate Milka through her dreams. After Seiren and Lilith's reconciliation, Milka goes back to her brother with Rascaless." by Wikipedia
A woman who appears in a book-world that corresponds to the Russo-Japan War era. She is an intelligence agent and an expert martial artist noted for sending three colleagues into hospital during training. Y�ko arrives on a train somewhere corresponding to contemporary Russian Siberia, cross-dressing as a male diplomat and attempting to link up with fellow agent Kohtaro Nanbu, codenamed "Adam", for a film containing radio codes. Due to her inexperience, however, she quickly becomes the subject of suspicion and is only rescued by Kazuo Saiga, another fellow agent known as "Tiger of Siberia". Although Kazuo turns out to be a double-agent whose henchmen end up killing Kohtaro, Y�ko is able to defeat him and complete her mission with Hazuki's help. (Wikipedia)
Ken is a yellow cockatiel who can talk. In the anime, he accompanies Lilith in her travels, while in the game he accompanies the nameless main character. He speaks in very heavy kansai-ben. Ken is loud, obnoxious, lecherous and perverted, as well as overly confident and a bit too slow to stay out of trouble. He usually ends up punched, squashed, beaten or otherwise violated, either as a result of tasks given to him by Lilith, or because of his big mouth and perverted tendencies. In the game, his true form is a kendappa and he is working for Arya.