Seishan

Seishan is a living human woman known by many titles, including the Lost Princess of Song and Saint Seishan.

She serves as the Leader of the Handmaidens and is affiliated with the Bright Castle and the Song Clan.

Her allies include Gunlaug, Nephis, and the Dreamer Army, while she counts Tessai among her enemies.

She wields a Soul Core and rose from Sleeper to Saint over the course of the story.