Seido Hishigata

Seido Hishigata (菱形 青銅, Hishigata Seidō) is the father of Sou and Tokiko. He is the director of the only hospital on Hitogashima, the Hishikata Clinic.

Appearance
Seido is an adult man with short gray hair. He also wears glasses.

Plot
At Hishigata Clinic, Seido is with a shadow in a wheelchair. He sees the red light in the sky and comments that Heine had recovered by consuming thousand humans.

Etymology

 * The name Seido means "bronze" (青銅).
 * Seido's surname Hishigata means "Rhombus, diamond shape" (菱形).