Character profile
Shion Sonozaki
園崎詩音Shi-chan / Nee-Nee
Biography
Shion Sonozaki is Mion's identical twin sister and lives in Okinomiya. The sisters have distinct personalities but sometimes switch places, making them difficult to tell apart. Shion works at the Angel-Mort restaurant and assists the manager of the Hinamizawa Fighters little-league team.
Story spoilers
During a childhood identity swap, she was mistaken for the younger twin just before the oni symbol reserved for the older sister was tattooed. The girl born as Mion became known as Shion. In Watanagashi-hen and Meakashi-hen, she blames the Three Families for Satoshi's disappearance and kills Satoko after forgetting her promise to him. In subsequent arcs, she becomes willing to give her life for Satoko.
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