: Torn between protecting Ha-jin and fearing that her regaining her memory of Seo-yeon will destroy her, Jung-hoon tries to distance himself . Character Highlights

: Tae-eun explains to Jung-hoon that Ha-jin’s memory loss is a defense mechanism; she forgot Seo-yeon and her own painful past to survive the trauma .

In episode 5 of , the central mystery of the leads' connected pasts begins to unravel . Lee Jung-hoon realizes the shocking connection between Yeo Ha-jin and his deceased first love, while Ha-jin faces escalating danger from a mysterious stalker . Key Plot Developments

Watch the turning point where Jung-hoon discovers the harsh truth about his past connection to Ha-jin:

: Ha-jin wakes up to find a disturbing reminder that someone has been in her house, leading Jung-hoon to find her a safe place to stay .

: Shows a "leaky memory" where she forgets small daily details, prompting her to take photos to document her life .