Everything and Nothing (2019)

Being 17 (1x4)

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After having a fight with Gi Hyun, Min Jae has an argument with Seo Yeon at school. Seo Yeon visits her father's wedding alone and meets her father's stepdaughter Mi Ju. Min Jae witnesses his mother seeing her boyfriend. Min Jae and Seo Yeon share and talk about the pain they suffer and be a comfort to each other.