Sein
Seiyuu / Dub
Summary
Sein is an infiltration-type cyborg developed after Quattro. Her unique Inherent Skill, Deep Diver, enables her to swim through inorganic materials such as the ground or rocks as if they were water. She possesses the Periscope Eye, an Inherent Equipment embedded in her right index finger that functions as an additional eye and serves as a tool to disable electronic and magical locks. Among the Numbers, she is one of the most cheerful, though she often appears suspicious. Despite a history of many failures, her complete and independent Deep Diver ability makes her a valuable asset in the eyes of both Scaglietti and Uno. Standing at the exact center of the creation order of the Numbers, she typically acts as a bridge between her older and younger siblings. She gets along well with Wendi, a bond strengthened by their similar temperaments and a past relationship as tutor and pupil.
