Hiyama Kiyoteru, the third and final of AH-Soft's simultaneous Vocaloid release, is advertised to be the Vocaloid Sensei.  His addition to the Vocaloid canon is the only male this year, and the women outnumber the men two to one.  Only announced after Miki's Christmas CD was released, he was shown to have some of the best potential of the three from the demo audio.

Kiyoteru sports a black suit customary of a Japanese schoolteacher and a clipboard or binder.  He is assumed to teach in Kaai Yuki's class, however his release is so new that his canon in general has yet to be established.  However, due to the simultaneous release with Yuki, there have been many fanarts in Kodomo no Jikan-esque style that draws the two characters in an illicit relationship.  If you are looking for fanart of this one, take this as forewarning.

Though he is the only male release this year, and the third male overall that's actually voiced by a male, Crypton has announced that their next release will be a male Vocaloid voiced by a user and producer of Vocaloid music.  It is unknown what impact Kiyoteru will make, due to his release being so recent.  Stay tuned.