In the anime, this is shown when she forcibly bypasses the rosary's sealing power to strike back at Ruby who had mercilessly attacked Tsukune from behind.
Moka and the others pay no attention to her as Kokoa tries to attack, but as Tsukune trips and fall, he removes the rosary from Moka's neck, and Moka's inner self kicks Kokoa away.
In the anime, this is shown when she forcibly bypasses the rosary's sealing power to strike back at Ruby who had mercilessly attacked Tsukune from behind.