TOOYA!!

Some info on this cute guy!!

A handsome guy who lost his memory after a car accident. He only remember his name is Tooya and the word 'Mikage, so he went to look for the Mikage family and became a bodyguard for them. He was asked to watch over Aya as she is the descendant of the tennyo (he wanted her for experiments). He was under the control of mikage kagami (one of the members of the mikage family)as he wanted to know his true identity, and only the mikage family can help.
Gradually, a kind of relationship developed between aya and tooya (who can resist this guy?) and they fall in love. However, the mikage family (actually it's the grandfather) wanted to kill Aya ( as she is the descendant of tennyo who wanted to destroy the mikage family). And now Tooya has to choose whether to forgo his memory or Aya.. He is a quiet guy who usually have a motionless expression on his face, as he has no idea of how to show his feelings.

I can't remember....