Jiburiru: The Devil Angel 2 Episode 4

Based on an adult game by Front Wing, this episode kicks off with Otonashi Meimi taking a solitary stroll through a deserted park. Out of nowhere, the demon Rococo materializes and launches her Eternal Arm attack on Meimi, aiming to extract the power of Misty Mei from her body. Meanwhile, over at Naoto's place, his stepsister Hikari, who's been studying abroad, makes her return. She enrolls in the same school as Naoto, and this development stirs a bit of unease in Rika, Naoto's girlfriend. In a passionate moment at the school nurse's office, Naoto confesses his deep love for Rika, saying, "I love you the most in the world," before they make love. But their intimate moment is shattered when Misty Mei appears and whisks Rika away. Just when things couldn't get more complicated, the angel Luvriel shows up, declaring that Naoto's only hope to save Rika lies in having sex with Hikari to bring forth a new Jibril.