Akuma Na Eros - Plot

Plot

Miu Sakurai is a high-school girl who is ashamed of her childish features. She uses an old book she found to read an incantation that grants any wish. The spell summons Satan, who demands her virginity as the price of her wish. The spell doesn't work, however, due to Amamiya's being a Christian, so Satan turns himself into a high schooler named "Kai", and changes the memories of people around her to become her older brother. He also changes his crow Malphas into a small boy named Tsubasa to be her younger brother.

Amamiya's followers are upset by Miu's seeming to grow closer to their idol and bully her. Satan uses his powers to allow Miu to defeat her bullies. Amamiya arrives afterwards and is upset at her use of violence. Miu finally gives in to Satan's demands and agrees to give him her virginity. Satan says he will take it on the night Amamiya confesses. Along the way, Miu develops feelings for Satan. Amamiya's eventual love confession doesn't thrill her as she expected, when he embraced her to stop her from going to Satan. After school, Satan finds her in the church and begins making love to her, but is surprised to find her crying.

Amamiya, having realized who Kai really is, breaks into the church and impales Satan with a sword. It is revealed that Amamiya is actually the archangel Michael. Michael had assumed the form of Amamiya in order to wait for him. Satan mocks Michael for saying he loves Miu for justice sake, but Michael tries to say that he really does love Miu. They battle in the church, and Satan is wounded. Michael prepares to send Satan back to Hell, but as he collapses he promises to take Miu's heart with him and tells her that he loves her. Miu runs to Satan and wishes to him to stay by her side, and Satan agrees in return for her eternal love. Michael admits defeat as he can not fight love. Alone again, Satan reverts back to his human form to claim Miu, but she faints from the excitement before they can finish.

In the morning, Miu wakes up to find people have forgotten her "brothers" Kai and Tsubasa. At school, she finds that Satan has now become her biology teacher, still using the same name. Tsubasa is now in her class as a high school student and assigned to protect Miu from any danger. Michael/Amamiya summons Sarah, a half angel-half demon, to Earth and tells her about Satan being in love with a human woman. She summons Satan back to hell, infuriating him. Taking Miu along, he returns to Hell. Miu is hurt to learn that Sarah is Satan's sex friend. Satan kicks Sarah out of his throne room after telling her he will not have sex with her again.

Satan has Miu found and returned. After a bath, she is taken to his bedroom where Satan claims her repeatedly while telling her the reason she was brought to Hell is so that Satan could have sex with her without anyone bothering them, Sarah furiously listens outside. When they return to Earth, Sarah follows and turns herself into a high school student at Miu's school. Michael asks her to partner with him, saying he can force Satan back to Hell, but Miu must not be harmed, which angers her on why she is on people's minds. Sarah attempts to get Satan to have sex with her, but he toys with her and warns her that she is just a toy and should obey. With her clothes still torn, Sarah goes to Miu and claims Satan slept with her and that Miu is just a sex friend like her.

Michael finds Miu crying in a class room and kisses her, which Satan sees. After smashing the windows, he leaves. Miu follows but Satan is furious and tells her that he will call the Sabbat, a gathering of demons where he slept with Sarah for show, and that Miu must attend to receive her punishment. There, he calls Miu from the crowd to be his consort and begins to take her in front of the gathering. Crying, she swears she has not betrayed his love, and Satan permanently closes the Sabbat then takes her inside where he makes love to her while telling her she is "precious."

Satan asks Miu to become his wife and come to live with him in Hell, which would require her to die. He returns her to her room to think about it. Uncertain if she wants to leave her family and friends, she finds herself at the bookstore where she bought the magic book and learns that the book had been waiting for her and her meeting with Satan was fated. Miu runs out of the store to find Kai, but iron beams fall from above and kill her. Michael, having realized Sarah planned to harm her, arrives to find Death ready to take her soul to the realm of the dead, where neither angel nor devil could find her. He refuses to allow her soul to be taken, and uses his powers to disperse Death. Satan discovers people have now forgotten Miu and Amamiya, as Michael erases Miu's memories and takes her to Heaven to spend eternity with him.

After killing Sarah for killing Miu, Satan goes to Heaven to retrieve her. Though Michael attempts to woo her, Miu can't accept him, though she isn't sure what she is trying to remember. Satan arrives and as he and Michael battle, Miu's memories return and she runs to a badly injured Satan, growing wings of her owns and she covers him. Michael opens the way back to Hell for them, accepting that Miu will only be happy with Satan. When Miu yells good-bye to Michael, and calling him by his human name "Amamiya" before the way to Hell closes, Michael says good-bye to himself and says that Miu was his angel. At the end of the series, Miu leaves her life behind and joins Satan in Hell where she becomes his wife.