Seiko Ugaki (宇垣成子 Ugaki Seiko ) is one of Junko Ōgami's classmates.
Seiko is the tallest of Junko's three friends. She has long, straight brown hair which she ties in a ponytail, with a fringe that comes down to her eyes. She has a light complexion and green eyes.
Seiko is described as having a personality that is tomboyish.
Note: Events occurring in Overture take place before the events of the main series.
|Residents||Junko Ōgami • Yukio Hamaguchi • Takayo Saitō • Seiko Ugaki • Yukino Ozaki • Junko's mother • Junko's father|