خلاصه داستان : یوزو شیک پوش پس از ازدواج مجدد مادرش در مدرسه جدیدی ثبت نام میکند. او تصور متفاوتی از روز اول مدرسه دارد، و نمی‌داند که بجای دبیرستان دوست داشتنی خود وارد مدرسه ی با کادر آموزشی بشدت سختگیر و محافظه کار خواهد شد.

Yuzu, a high school gyaru who hasn't experienced her first love yet, transfers to an all-girls school after her mother remarries. She's beyond upset that she can't land a boyfriend at her new school. Then, on her first day, she meets the beautiful black-haired student council president Mei in the worst way possible. What's more, she later finds out that Mei is her new step-sister, and they'll be living under the same roof! And so the love affair between two polar opposite high school girls who find themselves drawn to one another begins!

خلاصه داستان : با ظهور قویترین خون آشام دنیا با نام نیاکان چهارم که فقط در افسانه ها از او نام برده شده و همچنین پیش بینی گسترش فاجعه ، سازمان دولتی شیر شاه تصمیم میگیره فردی رو برای جاسوسی و از بین بردن این خون آشام بفرسته. اونا جادوگر بزرگ “sword shaman” رو برای این کار انتخاب میکنن ... اما به دلایل اسرارآمیزی کسی که برای این کار فرستاده میشه یکی از شاگردان “sword shaman” به نام “Himegari Yukina” هست...دختری که هنوز در حال یادگیری فنون جادوییست. هویت پنهانی “نیاکان چهارم” چه کسیست ؟! “Yukina” چگونه بر بزرگترین خون آشام غلبه خواهد کرد ؟!!

Kojou Akatsuki's days as an ordinary high school student in the Demon District of Itogami Island come to an abrupt end after a fateful encounter leaves him with the remarkable abilities of a vampire. It isn't long before he is thrust into the center of attention when it is discovered that he is the fourth primogenitor, an immensely powerful vampire whom most consider to be merely a legend. Fearing Kojou's destructive potential, the Lion King Organization sends in an apprentice sword-shaman, Yukina Himeragi, to monitor, and should he become a threat, kill the boy deemed the world's most powerful vampire. Forced together by circumstance, the two form an unlikely alliance as Kojou comes to terms with his abilities and they both struggle to protect the city from various emerging chaotic forces.