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Goo Se Ra
También conocida como: Gu Sera, Sera, Updating, คูเซรา, 具世拉, 구세라 · Gu Sera · Sera · คูเซรา · 具世拉 · 暴走少女具世拉 · 鉄槌女子~拳一つで問題校改革~ · 구세라 · Gu Se-Ra
The number one school in the country, Kangsan High School, Goo Se Ra, has a crush on Lee Seo Jun, who comes to Kangsan High School for teaching. She experiences all sorts of hardships with problem students. In order to protect her crush, Goo Se Ra decides to turn the worst problem school into a model school. Part of the Blue String Universe