Tsukiumi
Tsukiumi (月海, Sekirei #09) is a Sekirei with a tsundere personality and a Western appearance that first appeared to Minato Sahashi in a dream saying that she would kill him. She wears a black and white dress and brown boots over black thigh-high stockings with brown garters. Tsukiumi's initial resentment is a result of her desire to be the strongest without the need to be winged by an Ashikabi. She is also under the false belief that "winging" means having sex with an Ashikabi; this misunderstanding is cleared up after the two finally met, and she decides to become his Sekirei. She refers to herself as Minato's "legitimate wife" and is very possessive of him. The most aggressive of Minato's Sekirei, Tsukiumi has a very short temper and rarely smiles. She does, however, have an honorable side, and is a strong adherent to the fundamental rule that Sekirei combat is one-on-one. She also goes to great lengths to prevent innocent civilians or bystanders from getting caught up in Sekirei fights. Tsukiumi's speech differs from the other Sekirei in Minato's party, as she speaks old-style Japanese; this was mirrored in the English dub of the anime by having her speak Shakespearian English.
In the beginning of the series, Tsukiumi has a one-sided rivalry with Homura stemming from a defeat when they first meet. Homura always refuses a rematch saying that she should concentrate on finding her Ashikabi. Since being winged by Minato, Tsukiumi looks forward to a rematch with Homura. Tsukiumi once confided to Miya that she still wants to be the strongest, but it is so she can be with Minato forever.
Tsukiumi has the ability to control and manipulate water, as well as the ability to gather large quantities of water out of the air. Her name literally means "Moon Sea" (not to be confused with lunar mare (月の海 Tsuki no Umi)), and Miya's nickname for Tsukiumi is "Walking Tap". Her known attacks are Yamata no Orochi (ヤマタノオロチ, "Eight-Headed Snake"), Water Arrow (水の矢 Mizu no Ya), Hydra Blast, Water Blade (水ノ劔 Mizu no Tsurugi), Water Celebration (水祝 Mizu Iwai), Water Dragon (水龍 Suiryū), and Steam Dragon (with Homura). Her Norito is "This water represents my pledge! Purify the evil residing in my Ashikabi!"
