Su-ji and U-ri

Su-ji Wants To Be Alone (1x40)

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U-ri is so preoccupied with thoughts of Su-ji that he can't sleep properly. Hyun-sung is in agony over Su-ji's disappearance but finds comfort in Na-young. Jang-soo decides on Hyun-sung's proposal and shares his thoughts with him. Meanwhile, Su-ji is fed up with Sun-young's constant knocking and insistence on having meals.