|Name in Japanese||宇垣成子|
|Rōmaji Translation||Ugaki Seiko|
|Debut (Anime)||Shakugan no Shana S Episode 03|
|Debut (Light Novel)||Volume 0|
|Appears in||Light Novels, OVA series|
|Voice Actor (Japanese)||Saori Hayami|
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|