第10話: ルビーがクラブに参加するが、オウヤカタに戻り、植物モンスターとの戦いを引き起こす。
After Ruby awakens to find herself in a tent with Tsukune and the other girls, she explains how badly witches have been treated and how developers are planning to destroy the sunflower field. After hearing her story, Tsukune and the other girls invite her to join the club and attend the academy with them. Seeing how kindly Tsukune and his friends treat each other, Ruby starts to have doubts that drive her to later sneak out that night back to Oyakata. When Tsukune and the other girls rush into the sunflower field to search for her, Ruby instigates a massive battle with plant monsters. Both Tsukune and Moka are trapped within the field when the others fend off the plant monsters. Tsukune removes the rosary on Moka's neck, and Moka's inner self takes on Ruby alone but to no avail. Ruby learns from Tsukune that Oyakata had died, but Ruby is in denial. Ruby uses a forbidden spell to attack them, but with their combined effort, they manage to destroy the spell. As Ginei and Nekonome arrive the next day, it is revealed that Ruby has survived the blast. (Source: Wikipedia)