Tomomi Matsunaga

Twin sister of Mikage, Tomomi is tomboyish and the more athletic of the two. Originally she attends an all-girls school, but transfers to Mikage's school after she falls in love with Yuuya. Able to communicate telepathically with Mikage, and Yuuya to a more limited extent. She is able to use more powerful abilities when she is in direct contact with her sister.

(Source: Wikipedia)