The Demon Ororon

 is a Japanese manga series written and illustrated by Hakase Mizuki. The manga was licensed in North America by Tokyopop. The epilogue to the series, had six chapters released as of 2007.
Plot.
When Chiaki meets a wounded young man on the street and offers to take him in, she has no idea that she's just invited the King of Hell to move in with her. Out of gratitude for helping him, Ororon offers to grant Chiaki one wish. Chiaki, who lives a very lonely life, asks Ororon to stay with her forever. Remarking that "forever" is not the same for each of them, Ororon agrees, and the two of them quickly become attached to each other. Unfortunately, Chiaki soon realizes that falling in love with a demon has consequences. Ororon has abandoned his throne, causing renegade demons, bounty hunters, and his own brothers to come after him to take his crown. As Ororon fights to stay alive and protect the girl he loves, Chiaki is appalled by the violence surrounding her, and condemns Ororon as a murderer. Their relationship remains strained throughout the series as Ororon attempts to refrain from killing for Chiaki's sake, leaving himself open for attack in the process. However, when her friends are threatened Chiaki herself displays a horrifying power. The powers her angelic father sealed within her level an entire city during a battle with several bounty hunters, and Chiaki spends the rest of the series in agony over her hatred of what she and Ororon must do to survive.
Manga.
Shinshokan published the manga's 4 "bound volumes" between April 1999 and March 2001. Tokyopop published the manga's 4 "bound volumes" between April 6, 2004 and October 12, 2004. Tokyopop compiled the volumes into "The Demon Ororon: The Complete Collection", which was released on December 18, 2007.
Reception.
A reviewer at Pop Shock Culture commended the manga for its balance of "Tarantino-esque ultraviolence" and "shoujo-channeling relationship of the two core protagonists". Greg Hackmann at Mania.com and IGN's A.E. Sparrow criticises the artist for drawing the characters " too similar in appearance".