Rosario + Vampire Episode 2

Moka Akashiya is the most popular girl in Yokai Academy, and Kurumu Kurono who is a busty succubus was jealous of Moka’s popularity surpassing her own. In order to replace Moka, firstly Kurumu closed to Tsukune and confused his mind with her eyes. She sowed discord between Moka and Tsukune successfully, as Tsukune really hurt Moka with some words.

Moka was sad because of Tsukune’s words and she just ran away from Tsukune in Rosario + Vampire Episode 2. When she was alone, she was told the truth by "Inner" Moka. Moka knew that Tsukune was dangerous and she hurried to Kurumu’s room to save him. Kurumu was angry and she was to kill both of them. Tsukune picked off Moka’s cross at a crucial moment and Inner Moka won Kurumu easily.