Fanart of Yingzi. Source
Yingzi (影子) means shadow in Chinese.
Yingzi (影子) is the main character of Phobia. According to her in-game description, she is a girl (女孩子 = female child).
Her name reading in Chinese hasn't been confirmed yet. It can also be read as Eiko or Kageko in Japanese.
Yingzi has very long, straight purple hair with blunt bangs. She wears a loose bright pink dress with a light pink heart in the center. She has purple shoes in a bit lighter hue than her hair.
Not much is known about Yingzi's personality.
Not much is known about Yingzi's past.