Tomori, Nao

Nao is a first-year student and also the student council president of Hoshinoumi Academy. She is hardworking, easily speaks her mind and has a very strong personality. She has the ability to make herself invisible, but this is limited to one person of her choosing at a time. She is a huge fan of the band Zhiend.

[Spoiler] In episode 10, it is revealed that she and Takajo knew all along that Yuu's ability was plunder and not simply possessing someone else's body [/Spoiler]

[Spoiler] In episode 11, she is kidnapped by mysterious people and stripped down to her underwear while being kept in a factory, along with Kumagami. [/Spoiler]

[Spoiler] In episode 12, Yuu confesses his feelings for her. Then she asks him to promise to come back to her, after travelling and saving everyone, when he comes back to her they can become lovers. [/Spoiler]

(Source: Wikipedia)