Shinoa Hiiragi is a major character in the anime and manga series Owari no Seraph (Seraph of the End). She serves as the leader of the Shinoa Squad and is known for her witty, sarcastic personality, as well as her exceptional combat skills. As a member of the prestigious Hiiragi family, she has a complex relationship with her sister and the ruling hierarchy. Shinoa plays a pivotal role in guiding protagonist Yuuichirou and often acts as the voice of reason within her group.