When Tokidoki Rikugou donned a pair of virtual reality glasses and entered a Bakumatsu-era exhibit at a museum, he had no idea that his life would drastically change. While walking across a bridge in the fabricated reality, Tokidoki ran across a small being and a monster called a nue - and he was promptly attacked. His eye was damaged, but more importantly, Tokidoki discovered that he was now stuck inside the "virtual reality" filled with samurai and spirits. Now, with the help of Kuchiha, a warrior woman possessed by a dog spirit; and Shinonome, a fellow student who has been stuck, just like Tokidoki, for the past two years, Tokidoki must search for the truth behind the nue and try to find a way home.
Amatsuki and Hakuouki share a surprising amount of similiar concepts. First of all, both take place in feudal Japan and intergrate history into their plotlines (moreso Hakuouki, since Amatsuki travels off into a more fictional plot). Both are very slow-paced, but entertaining (for example, comedic moments with Shinpachi and Heisuke in Hakuouki or Kon and Shamon in Amatsuki), even though there's plenty of talking. Also, mystery plays a big part in both, which hooks watchers into such slowly-paced shows as these. Overall, the shows are pratically blood siblings in every aspect but plot.
The story setting of Feudal Japan is seen in both Amatsuki and Hakuouki Shinsengumi Kitan with intense fighting scenes and spirits popping out of nowhere. There also happens to be an underlying layer of mystery shrouding the characters.
Ouran High is a school for the extremely wealthy or, in Haruhi's case, the extremely talented. But no amount of talent will help when Haruhi accidentally drops an eight million yen vase in a music room. The vase was the property of Ouran High School Host Club, a group of attractive young men who, for a fee, provide their time and affections for their lovesick clientele: the female students. Fascinated by this strange new specimen, a poor and clumsy commoner, they force Haruhi to work for them until the debt is repaid; but they get a lot more than they bargained for...
There are a whole group of boys around the cross-dressing female lead in both of these series and there is a variety of personalties among the group. Also, both lead girls seem similar to me, in that they are neither a tom-boy nor very feminine, not strong but not the weak, crying type.
The similarities between Hakuouki and Ouran are not in plot.I think they're similar in the characters: a bunch of handsome, overprotective, guys and female cross-dresser.
In short, if you like/liked one you'll probably like the other.
Both "Uta no Prince-sama" and "Hakuouki Shinsengumi Kitan" are typical reserved harem series. They both have main female characters that don't really do anything-- which lets the viewer focus on the boys. In both series, we have the typical silent guy, who doesn't really like the main character (at least at the beginning of the story); a cheerful type; and a handful of other men, who come in all shapes and sizes. If you'd also like to enjoy a teeny-weeny bit of plot, you can get what you ask for. In "Uta no Prince-sama", Haruka aims to be a bigtime in the music industry. In "Hakuouki', we follow our character as she tried to find herself in the Shinsengumi.
Both are reversed-harem animes with hot guys and a sensitive girl who tries to help everyone around.
In world where flesh-eating monsters roam the streets, only one organization has the means to save civilization from annihilation: Red Shield, a specially-organized unit designed to fight these monsters, and the only weapon that can destroy them: Saya. Awakened from a 30-year sleep, Saya is thrust into a modern world which she has no memories of, and is troubled by a past filled only with bloodshed and sadness. With the undying love and support of her family and friends, she struggles to gain the strength to move forward and regain the pieces of her shattered memories.
D'Eon is a French nobleman bent on serving his Divine Majesty Louis the XIV to the best of his abilities, following in the footsteps of his beloved sister Lia de Beaumont. However, his straight-forward role with the secret police is interrupted by the sudden death of his sister while on a diplomatic mission in foreign lands. In his desire to find the truth of her murder, he comes before the King and becomes closely entwined in the mysterious organization known as Le Secret du Roi. He quickly finds himself embroiled in a realm of spiritual energy where death is a gate to greater powers and the Psalm of the King brings destruction in its wake. D'Eon must ask himself what is the price of truth and who will pay it, as the French Revolution looms inevitably nearer.