cyou_shigen
An original character by Beifeng Han.
The artist has also called her Zoeng Zijyun, the Cantonese pronunciation of her name.
She has long blonde hair, and red eyes. She is Miyaura Sanshio's friend.
For her Self-Introduction, her profile says:
Original:
はじめまして、張子源です！
14歲です
源ちゃんは三汐の友たちです~
Translation:
Nice to meet you, I'm Cyou Shigen!
I'm 14 years old.
Gen-chan is Shanshio's friend!
Translation credits: Moonspeaker