Ep. 3: Akira e Shirogane enfrentam a possessão parasitária de Mayu na residência de Kengo.

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Akira and Shirogane are in the 'Bar Still' when Kengo's older sister, Mayu comes on and spots Akira. She says that he has become more handsome and wants to play with him, much to Shirogane's distress. Mayu sees Shirogane's back before he leaves and asks Master who he is. Outside, Shirogane tells Akira that Mayu has a strong ESP sense and may have seen him. After getting drunk, Mayu complains to the Master about her love life and tells him he's attractive (she has an attraction to good-looking guys). On her way home, Mayu sees 2 blue orbs but when she looks again they have disappeared. A blue-haired guy appears and tells her that he'll help her... Akira is at Kengo's place who's happy with the visit because he rarely visits him. When Mayu enters the room, she lashes out to Shirogane but he disappears, leaving Kengo and Akira as her targets. Akira notices her strange behaviour but Kengo says that she's often like this after drinking. Trying to escape her Akira and Kengo go out of the room and close the door but Mayu breaks it with ease. Kengo thinks that she might be possessed and goes to get a salt (used in exorcism), asking Akira to keep her busy. He runs downstairs and asks Shirogane what is happening, who explains that she's possessed by a Kokuchi parasite since she has darkness in her heart. Kengo appears with the salt and sprinkles it but had little effect. Mayu grabs Kengo and flings him against the wall while Akira tries to talk some sense in her while she strangles Kengo, who finally lose consciousness. Aira changes to a Shin and tries to make her realize what happened but Shirogane thinks it's useless since the parasite is nearly one with her. Mayu finally unleashed a sea of darkness which almost drowns Akira and Kengo (who woke up). Thinking that Akira might die, Shirogane decided to kill Mayu, to Akira's protest. Shirogane readies himself for an attack and Kengo sees this, calling out to her. Mayu wakes up, making the parasite leave her body and Akira finishes it. (Source: Wikipedia)