Lianapirina

Lianapirina (リアナプリナ), also known as the Water Calculation Empress (水算女帝) is the Sovereign of the Water Calculation World Sailaina.

Appearance
She has long azure hair, her ears are like fish fins, and she wears a shell hair ornament on her head.

Abilities

 * Immense Magic Power: As a resident of a deep world and the Sovereign of the Sailaina, Lianapirina possesses an extraordinary amount of magic power.
 * Spirit Magic: According to Anos, Lianapirina is very talented at spirit magic.
 * Flowing Spheres Abacus: Her unique form of spirit magic, which allows her to calculate how various siations unfold and what outcomes they could result in. It also grants her expert appraisal abilities, as she was capable of accurately assessing Anos' power, which she was able to accurately assess was comparable to the Inviolable Waters. It is able to take into account various changes in circumstance and adapt them into her calculations, thus increasing the accuracy of her analysis. She is able to use the power of the Flowing Spheres Abacus to negate an opponent's action if she correctly calculated the outcome. However, if the opponent's result exceeded the scope of prediction, the blessing of the Flowing Spheres Abacus will be lost and Lianapirina returned to her original power.
 * Master Strategist: Lianapirina is noted for her expert calculation abilities, which allow her to expertly analyse various situations such as battle scenarios, making her an expert tactician.
 * Master Silver Water Shogi Player: She is also stated to be a master of Silver Water Shogi due to her strategic abilities, as it was stated that the Water Calculation World Sailaina was undefeated in Silver Water Shogi. She was granted the role of serving as Anos' opponent in Silver Water Shogi, as the various Sovereigns trusted her tactical insight. She was able to gauge Anos' tactics and knew that he was capable of destroying the Silver Water pieces with his own strength and calculate the range of his Gilieriam Naviem ' s range and destructive potential, as she was able to assess that his power meant that group attack him while Gilieriam Naviem would be foolhardy.