Rosario+Vampire: Season II

It has been one year since Tsukune entered Youkai School. After spring break, Tsukune hurries to school to reunite with Moka-san only to collide with a mysterious girl on a bicycle who was also extremely cute. In school, Moka and friends were quickly surrounded with fuss by the new students. In addition, a large amount of fan mail was found in the shoe cabinet of Moka which came from the new students who also adores her, but there was one special letter. A dangerous threatening letter that said, "I’m taking your life."

The atmosphere of the encounter in the previous episode grows more ominous as Moka identifies the mysterious girl as her younger half-sister Kokoa who intitates a battle proving that she is a formidable adversary. Ruby and one of the teachers intervenes to escort Kokoa back to class, much to everybody' relief. Moka explains her back story with Kokoa who bursts into the room to initiate another battle by reaching for her pet bat (the narrator of the first season) that has the capability to morph into whatever weapon Kokoa wants. The ensuing one-on-one duel demonstrates Kokoa's lonely anguish at being left alone after Moka left home to reside in the human world. Tsukune intercedes to illuminate the fact that Kokoa actually likes Moka and that there is no need for all this drama since Kokoa is now in the same school as Moka herself. Unfortunately, Kokoa's bewilderment and frustration at Moka's powers being sealed is just too great for Kokoa to be successfully reasoned with; a speedy intercession from Tsukune and a stalwart kick from inner Moka later, Kokoa runs to eagerly and lovingly greet inner Moka. As Tsukune (while carrying the exhausted exterior Moka) leads everybody to the infirmary, Kokoa quietly resolves to have inner Moka with her as the rule.

While it is meant to enhance the relationships within a nuclear family so that the youthful student excels academically to prosperity, this Parents' Day at Youkai Academy becomes another day for both Mizore's mother Tsurara and Kurumu's mother Ageha to prosecute their long-standing rivalry that has proven to be a stalemate on all counts. Under the mirage of Tsukune as her daughter's boyfriend, both Tsurara and Ageha endeavor to coerce matrimonial copulation of Tsukune with their respective offspring. Hopefully Tsukune will survive the barrage of love...

Yukari is bothered by the fact that she is still a child and with the help of someone, she has been given the chance to experience life as a grown up. Of all the possibilities of her new live, getting Tsukune's love is one of the top priorities. But while all the other boys - and girls - of the high school seem to react to her new appearance, the target of all her trouble seems to be ignorant to it. Will Yukari be able to change the tide?

Moka, Kurumu, Yukari and Mizore want to win Tsukune's affection by practicing on making a perfect curry dish. While Mizore is trying to improve her cooking by herself, Moka, Kurumu and Yukari are attending a cooking class with a very passionate teacher when it comes to Indian curry. But will all the cooking at Youkai Academy find a way to Tsukune's stomach and heart or will all attempts be in vain?

The group goes on a field trip to the human world. While there Moka wants to spend more time with Tsukune, but Kurumu, Mizore and Yukari make it impossible as they try to get close to him themselves. Will Moka chan finally be able to get her private time with Tsukune or will she have to share once more?

Tsukune's decision to use a portion of his time on the field trip to pay his mother Kasumi a visit at home that is meant to be a quiet heartfelt family event, begins its metamorphsis into a circus when Moka follows Tsukune home, much to Kasumi's shock. But before long, the madness that usually fills Youkai Academy finds it way to Tsukune's home.

This episode holds multiple small comical story lines: from Ruby-san getting annoyed because of the short skirts that all girls are wearing to Nekonome-sensei trying out new clothes to wear and many more.

Tsukune and the others visit a skiing slope in the human world, which was surprisingly run by Mizore's mother, Tsurara. While the others are skiing, Mizore kidnaps Tsukune by orders from her mother so she and Tsukune could make offspring. Unfortunately, Mizore brought a ice doll replica of Tsukune and left the real one in the middle of nowhere. Kokoa showed up after she learned she can get her "Onee-sama" by removing the rosario around Moka's neck. When Moka showed up to find Tsukune, Kokoa was unable to remove it. When yelling at Tsukune, she caused an avalanche, separating Tsukune and herself from Moka. Meanwhile, the others were relaxing in the hot springs when Tsurara showed up and distracted them from finding Tsukune, until Moka and Mizore showed up, telling them Tsukune was in danger. Tsukune managed to take cover in a cave with Kokoa, but due to a snowstorm they were closed in and Kokoa began to freeze up. A Yeti showed up and started attacking them, but Mizore could distract it long enough for Tsukune and Kokoa to escape. Shortly afterwards, Moka arrives too and once again Tsukune manages to remove the rosario, unsealing Inner Moka who defeated the monster. This eventually turned out to be Mizore's father (in a costume). Apologizing afterwards, Tsukune and the others return to school.

A new transfer student called Ijuuin Kotaro attends Youkai Academy. By muttering the words "Je t'aime", which is French for "I like you", he can control anyone who hears him mutter those words as he wish. Meanwhile, Kokoa is looking for her pet bat, Komori, who has disappeared. Kotaro eventually manages to hypnotize the entire female population (except Kokoa) and even Gin. Kokoa eventually deduces that Koutaro is really Komori in disguise, when he accidentally calls her "Kokoa-sama" and adds "dechu" at the end of his sentence. Tsukune eventually removes Moka's rosario and the Inner Moka defeats the student with Kokoa's help. Koumori returns to his original bat form, and one of his teeth falls off and releases some kind of dark spirit. At the end, Kokoa thanks her "Onee-sama" for saving, but Inner Moka told Kokoa to thank the other Moka for trying to save her, even if she was still under the spell. Kokoa still thinks the Outer Moka isn't her real "Onee-sama".

Kyouko enters Youkai Academy, carrying a parcel for Tsukune. On her way, she crashes into Kokoa, who is holding a parcel that has the same wrapping as Kyouko's parcel. When the two recover, they accidentally exchange parcels, and Kyouku ends up with the Lilith Mirror. It turns out that the Lilith Mirror is a dangerous object that not only reveals the true form of all the students at Youkai Academy but also their inner desires. Kyouko realizes that Tsukune is attending a school where everyone is a youkai and becomes frightened by everyone's true form. Eventually, Moka saves Kyouko. Although, Kyouko is scared, Moka manages to earn Kyouko's trust in her. But after gazing at the Lilith Mirror, she splits into two individuals, her sealed self and her unsealed self. Luckily, the Lilith Mirror's effect is reversed at the end, and everyone returns back to their normal selves. Confused at first as to why Inner Moka chose to re-fuse with her, Moka understands that even though she trusts Tsukune, she doesn't have the power to protect him. Kyouko lets Tsukune stay in the school as Ruby takes Kokoa to the Headmaster. But the group's troubles are far from over, because the barrier that divides both the human and youkai world is starting to crumble.

Following the previous episode, the fracture in the sky above the academy and that of the human world is allowing the humans and youkai to peer into each others world from above. Moka decides to replace the broken rosario on the seal with hers, thus stopping the youkai world from merging with the humans'. However, Outer Moka's actions come with a price, as she is replaced permanently by Inner Moka. She proves to be bolder with her emotions than the Moka Tsukune has come to know, making him depressed. Ruby, however, discovers a way to recover Moka's rosario. According to the Chairman, Moka's rosario and the barrier's rosario are made by the same person, who is one of the three founders of Youkai Academy along with the Chairman. He resides in a castle north of the barrier. Ruby informs Tsukune about this, and Tsukune determines to find that person, despite Ruby's warning that he will kill anyone who approaches his castle. Meanwhile, the other girls' mothers visit the school the following day and start searching for Tsukune, hoping to hear his decision on who would be his future wife. However, Tsukune has already set off to find the creator of Moka's rosario. Little does he know that Kokoa has overheard his conversation with Ruby and is planning to intercept him before he reaches his destination.

Continuing from previous episode, Tsukune is continuing his journey to the castle. On his way to the castle, he is attacked by Komori and his army of bats, and Mizore's and Kurumu's mothers. When he finally reaches the castle, Kokoa warns him that the third Dark Lord is her father, and his powers exceed that of an S-class youkai. Despite that though, Tsukune is willing to face him to get a new rosario for Moka. Tsukune gets beaten badly by the Dark Lord, but his determination brings out his latent vampire powers and manages to snatch the rosario from the Dark Lord's hand. Eventually, Inner Moka arrives and stops the fight, saying that Tsukune has the won the battle. The Dark Lord agrees to let Tsukune have the rosario and leaves the castle. Kokoa tries to steal the rosario away from Tsukune, but before she could run away with it, the caste starts to collapse, as Koumori explains that the castle collapses every time the Dark Lord leaves. With the Rosario in his hand, Tsukune prepares to bring back Outer Moka, but not before Inner Moka has her moment with him - which results in Tsukune being kicked hard and bit in the neck. With the Rosario in place, Tsukune and Outer Moka have their reunion, and Tsukune is bitten yet again. Soon after, Kurumu, Mizore, and Yukari also try to get in the moment. Finally, after everyone dances to the ending credits, Nekonome-sensei and Ruby arrive with the bus to bring everyone back to Youkai Academy. Kokoa vows that she will get her "true" sister back from Tsukune, but her father unexpectedly shows up and deduces that Kokoa was behind the entire thing. He punishes her in the form of public spanking. Kokoa suddenly bursts out with the Lilith's Mirror, splitting Moka into her two selves again and all the girls (even Inner Moka) grab on to Tsukune.