Tell Me What You Saw

Afterimage: A Phenomenon Where an Image Continues to Appear Without Light (1x2)

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Su Young tells Hyun Jae that she wants to join the RIU, and Hyun Jae asks her why she wants to join the RIU. Su Young becomes a temporary teammate of the RIU. RIU tries to find another victim who might be alive. Su Young gets into danger while the investigation and Hyun Jae helps her at that moment.