Shinoa Hīragi (Anime)

Shinoa Hīragi (柊 シノア) is the main female protagonist of the Seraph of the End: Vampire Reign manga series and the younger sister to Mahiru Hīragi. She is from the prestigious and rich Hīragi Family and was appointed as Yūichirō Hyakuya's supervisor during his suspension. She was a sergeant of the Japanese Imperial Demon Army, and the leader of the Shinoa Squad (シノア隊) in the Moon Demon Company.

Trivia

 * Four 「四」 can be read as "Shi" 「し」. Shi 「死, し or シ」 means "Death."
 * Hīragi 「柊」 literally means "Holly."
 * She usually calls Yūichirō by the nickname "Yu-san" (優さん) in Japanese.