Shiki Toono sustained a life threatening injury as a child, and due to that incident he was sent away from the Toono household and was given to a relative to be raised.
Years later, when Shiki is in high school, the head of the Toono household—his father—dies, and he is ordered to move back in by his sister Akiha, who is the new head of the household. Ever since that injury, he has been seeing lines on objects, and only with a special pair of glasses is he able to stop seeing them.
Also he is unable to remember anything well from the time before his accident.
When she suddenly showed up beside him later alive and well, and ask him to be her bodyguard, Shiki's journey to unravel the mysteries of his past begins.
(Source: ANN)"There is no Tsukihime Anime." Ah yes, those infamous words.
Before all of you say anything, I DID finish the visual novel and I HAVE read the manga (well, the first three volumes) and guess what, I STILL enjoyed this anime so sit back, relax and let me tell it like it is.
As far as story goes, I don't see what the problem was.
Quite honestly, I thought the visual novel was redundant when explaining the differences between a Dead Apostle and a True Ancestor.
In the anime, it goes straight to the point and makes easy on the viewers. True Ancestor is a transcendent race, vampires yes but were never human to begin with.
While the plot is still much deeper and complex in the visual novel, don't really undermine the anime's version of it.
If you are a huge Tsukihime buff and want to know EVERYTHING about Tsukihime, then you won't like the anime.
But if you just want to get in and enjoy a decent anime then won't bore you to death with details, then watch the anime. While they could have brushed up a bit better on some characters (Nero and Roa come to mind) in general, the characters look like they are supposed to.