Seonsaengnimeun 9-se Iyongga

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From archenemies to fictional lovers! Tae-Yeon is horrified when she finds herself co-teaching an after-school writing class with her college nemesis, Yong-Jin. Little does she realize that the worst is yet to come. They're in for a wild ride when they get sucked into a novel written by 8-year-olds, where absurdity becomes reality! (Source: Manta)