- Voice Actor (CV)
- Aya Suzaki
- Role
- Protagonist
- Identity
- A hybrid bio-weapon born from the fusion of human and Gauna cells, engineered by Kunato Developments and serving as Sidonia's most formidable combat asset
Personality
Innocent and pure-hearted
Courteous and well-mannered
Emotionally expressive
Harbors deep affection for Nagate Tanikaze
Tsumugi Shiraui makes her debut in the second season of Knights of Sidonia as a unique hybrid entity created using cells derived from Shizuka Hoshijiro. Despite her imposing and colossal form, she possesses the gentle soul of an innocent girl, capable of connecting with others through her expressive tentacles. Recognized as Sidonia's ultimate weapon, she demonstrates overwhelming power on the battlefield while gradually forging a profound emotional bond with protagonist Nagate Tanikaze that transcends the boundaries of species.