Yuki Cross' earliest memory is of snow and blood - she was attacked by a vampire only to be rescued by another. Ten years later and Yuki has been adopted by the headmaster of the prestigious Cross Academy. This school is unique in that it consists of 2 classes - a Day Class and a Night Class. The Night Class is made up of vampires led by Yuki's rescuer all those years ago, Kaname Kuran. Together with Zero Kiryu, a childhood friend who despises everything to do with vampires since his family was murdered, Yuki must serve as a Guardian of the school to keep the two classes separated. Secrets lie beneath a peaceful exterior and not everything is as it seems, as Yuki learns the truth about Kaname, Zero and her own forgotten past.
With mystery surrounding the vampire clans in both Vampire Knights and Tsukihime the characters past reveal significant conflicts regarding their current situations. With the revelation of these mysteries unfolding, their lives will never be the same again.
Tsukihime and Vampire Knight are mystery stories involving vampires. In both of them the past of the main protagonists are explored revealing more and more shocking and surprizing stuff, making both of them very similar. If you liked one for sure you will enjoy the other one as well.
Even though Tsukihime has some supernatural basis it still has the same realistic romance feeling that Aquarian Age manages to capture between the characters. There is no comedy or antics in these two series just the pure unbidden love between two people that really care about one other and just how much their love means to them.
The aspect that I found most striking between Tsukihime and Blood + was the fact that both of the main characters lost parts of their memories. The journey in each series of how they are able to overcome these difficulties and strive for what they are looking for is heartfelt for each character.
As the past for the main characters is unknown in Ceres and Tsukihime problems start to arise from the secrets. Both series contain supernatural elements designed to enhance the mysteries surround the leads.