Most of the time, Phonon seems to be very wise-cracking and is quick to look down on other people through a harsh and demeaning front. However, she is deeply obsessed with supernatural phenomena and willingly risked her life to become an In-Birth (which are common traits of middle-school syndrome). During the Hollow Night, she puts on the role of a dominatrix, which can sometimes lead to some awkward situations.Phonon is also a very bad liar, as Tsurugi was able to completely see through her a

