Manas: CIEL is a kind of intelligence core that resides within your consciousness. she doesn't like anyone looking down on you. she is cunning and mischievous but at the same time very kind to your allies, especially to those who have good intentions towards you. Often, due to the fact that she knows how you think, she withholds certain information from you that will surprise you. This of course is still out of good intentions because Ciel always wants improvement from you.