Jaina Repellista Zahard (제이나 레펠리스타 자하드, Jeina Rehpehlliseuta Jahad, "Jaina Repellista Zahard") is a Zahard's Princess from the Jania Family. First appearing in chapter 80 she seems to be addicted to sitting in her darkened room in front of her Lighthouse watching what's happening in The Tower. As one of the towers best informed residents she is tasked by Ha Yuri Zahard and is now supposedly trying to find Baam. However, being aware and looking forward to the return of the Prince of Zahard she's apparently also following some plan or might otherwise be expecting something entertaining to happen in the close future since she is very confident after having made Ha Yuri Zahard "participate" in her plan saying "Good, got her".

She calls her observation of the entire Tower a "game". If this is true, it could mean she is one of the most skilled Light Bearers in the whole Tower. She received her an  Opera from the first and highest ranked Light Bearer in the Tower Tu Perie Tperie. She's never been interested in climbing the Tower and she prefers to observe it. This means she's never attained a Ranking, and therefore is an Informal Princess.