Quote Originally Posted by Ryllharu
Did that event of her chasing Mikiya through the forest put her into a coma for two years? It seems the next one with Asagami takes place just after she comes out of her coma, in July of 1998.
So it seems now, but I'm puzzled by the fact the description says she gets the eyes when she wakes up from the coma. However, the lackey was saying Shiki can be the only next master of the house because she has a special attribute. At that point I thought he meant the eyes. But perhaps it was just the split personality. If it was "just" that, then had her brother failed to develop a split mind?

Likely it will be shown in some episode; her waking up, that is. That should also give the definite answer.