Lust Geass, Vol. 6

After catching Souta cheating on her with not one, not two, but three other women, a devastated Rikka starts to avoid him completely. And with the help of the demon Gremory, she finds that she doesn't need him to feel pleasure anyway! What Rikka doesn't realize, however, is that her fantasies aren't all what they seem to be… Can Souta uncover the reasons behind her strange new behavior before it's too late?

Volume 6 of the Lust Geass manga series by Osamu Takahashi.