Ye-bun begins questioning her grandfather's intentions. She later recruits Jang-yeol to solve an animal abuse case, in exchange for her help in his case.

Jang-yeol investigates a truly perplexing case of disappearing underwear. After Ye-bun aids him in his search, she witnesses a sudden betrayal.

Faced with a tragedy, Jang-yeol tries to track down the person responsible. Ye-bun discovers a shocking scene after experiencing a vision.