A Sensitive is a person with talents akin to the Secret Art. A sensitive is able to sense certain things before they happen. They can also broadcast their emotions to others, as well as pick up the emotions of others.
Sensitives are notoriously unreliable, due to their ability to sense possible dangers before they actually occur.
Sensitives first appear in View From the Mirror with karan Fyrn, Maigraith and Mendark being revealed as Sensitives. Although not categorically stated, the similarities based on events seen through Karan's eyes, it would also seem that sensitives appear in The Well of Echoes (series) in the form of Ullii and her twin brother Myllii. All have seemingly similar abilities to sense the various uses of Mancing as well as having their own unique abilities such as being able to Link.