-Vol. 1: Onna no Mondai Teiki (2002) Vol. 2: Onna no Mondai Teiki Sex Hen (2002) Vol. 3: Onna no Mondai Teiki Jiken-hen (2003) Vol. 4: Onna no Mondai Teiki Kekkon Trouble Hen (2004)
Based on the novel *Chōrui Gakusha no Fantasy* (2001) by Hikaru Okuizumi.
"I'm going to save you and the world!" Cocoa, who's pursued a criminal from the demon realm, collides with high schooler Daichi! To save his life, she has no choice but to pour her own demonic power into him... Battle action with beautiful girls, underwear exposed! Love rivalry and Earth's fate, both on the scales!
Pairing: Sanji x Zoro **V.1** * *From 3AM to 5AM, A Honeymoon P* by [SARUYA Hachi](https://www.mangaupdates.com/authors.html?id=1458) **V.3 - Sanzensekai** * *Blood Type: S* by [Shiba](https://www.mangaupdates.com/authors.html?id=31658)