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![A person on Friday visits a memorial altar for a 23-year-old teacher who took her own life, located at Seoul Gangnam Seocho District Office of Education in southern Seoul. The teacher was found dead in a classroom at Seoul Seo 2 Elementary School in Seocho District, southern Seoul, on July 18. [NEWS1]](https://image.koreajoongangdaily.com/10135857.jpg?imageId=10135857&width=240&height=184&format=webp&format=jpg)