Melancholia

Seung-yoo Returns (1x7)

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After four years, Seung-yoo has now become a renowned mathematician, and he returns to look for traces of Yoon-soo who has disappeared after the incident in 2017. Meanwhile, Principal Noh Jung-ah of Asung High School of Math and Arts proposes an offer to Seung-yoo, and Seung-yoo responds with another offer.