Hakuoki - Demon of the Fleeting Blossom – Warrior Spirit of the Blue Sky

When her newly-built home is razed to the ground by an earthquake, low-achieving, clumsy, and troublesome third-year high school student Kotoko Aihara is forced to share a roof with the school's—and possibly Japan's—smartest student, Naoki Irie. Kotoko is not actually a complete stranger to Irie-kun; unfortunately, a single love letter that she tried to give him in the past has already sealed her fate as far as he is concerned. Throw in some quirky friends and a meddlesome mother, and Kotoko might not even have a snowball's chance in hell of winning the older Irie boy's heart. Yet Kotoko remains optimistic that, because she now lives in his house, her unattainable crush on the genius since the beginning of high school has never been more within reach.

Akito Kobayashi has always had an interest in the occult, and when he learns to control demons though the help of a computer program he created and magnetite, the essence of human life, he plans to unleash hell on earth. The only hinderance may lie within his old friend Kojiro Soma, who has the ability to stop the destruction, if he can find it within himself to do so.

Shinokita Reiko and Yajima Junko are second-year high school students who travel from school to school fighting bad guys, ninjas, yakuza and corruption. At this high school they encounter a secret ninja order and a corrupt administrator, as well as a tragic death in the distant past. With the help of Kotetsu, a skilled ninja, they set the school to rights, but not before leaving several broken hearts behind.

Deep within the earth, an ancient evil has awakened. According to legend, three dragons shall re-emerge from the earth to wreak havoc upon the land. Preying upon the weak-willed, the dragon spirits grow stronger as they devour the innocent souls of their chosen hosts. Only the power of a long-dormant warrior-god can fulfill the ancient prophesy and defeat the growing evil. But will his chosen host be convinced to fight?

Joker is a cyborg who has superior strength, can absorb the DNA of any person by touch and regrow its body or part of it at will (hence Joker can be a male or a female). Joker belongs to a special troop of law enforcement: as cop, judge and executioner at the same time. Along with his/her lover, a police officer, they have dealt against criminals of every type.

Akira, Junpei, Keiko and Kumiko are members of the Rutz Detective Agency, and are always ready for a good case. When a mysterious murder places a top secret floppy disk in the hands of Junpei, the gang suddenly has a conspiracy on their hands of grandiose proportions. Not only have they made an enemy of politicians and shady characters, but also the munitions manufacturer company Yotsuboshi itself! With murder attempts, rampaging machinery and kidnappers to handle, the group must race against the clock to foil the evil scheme before it's too late!

When Chizuru Yukimura comes to Edo-period Kyoto searching for her missing father, she witnesses a bloody murder by crazed members of the Shinsengumi - the shogunate's secret police and supposed peacekeepers. Taken into custody after seeing something she wasn't supposed to see, Chizuru finds herself caught up in the group's battles and secrets. Based on the video game by Otomate.