In the thirteenth episode of "Bad Memory Eraser," titled "Sea of Tears," the narrative takes a heart-wrenching turn as the characters' emotional depths are explored with raw intensity. The episode begins with the shocking leak of photos that suggest Shin attempted to kill Gun, casting a dark shadow over the brothers' relationship and prompting Hong and Gun to seek the police's help in locating Shin for attempted murder.
Shin, now in hiding, receives a threatening voicemail from a stalker, adding to the tension and danger that surround him. Meanwhile, Gun's discovery of dashcam footage from the night of the reunion reveals a shocking twist: it was Shin who jumped from the bridge, and Gun was the one trying to save him. This revelation forces the audience to reevaluate the dynamics between the brothers and the true nature of their conflict.
A flashback to the fateful night sheds light on the brothers' heated argument, where their pent-up emotions and feelings of sacrifice and suffocation come to a head. Shin's decision to jump is a desperate act, and Gun's attempt to save him results in Gun's own injury. The emotional weight of this scene is palpable, as it highlights the deep bond between the brothers, despite the turmoil they face.
At home, Mr. Lee's confession of pressuring Shin to earn money after losing all of theirs adds another layer to the family's struggles. Meanwhile, Ju-yeon's concern for Gun is evident as she keeps tabs on him through Han, even as she takes a leave from her duties at the hospital. Sae-yan's journey to find her father takes a heartbreaking turn when she discovers that the man she believed to be her father was merely paid to pretend. This revelation is a crushing blow to Sae-yan, who seeks solace in Ju-yeon's presence, further complicating the relationships between the characters.
Shin's luck seems to be at an all-time low as he faces expulsion from the tennis association and finds himself in a dire situation on the beach. However, Ju-yeon's determination to help him shines through as she locates him using the payphone's position. The delinquents' discovery of Shin's ID and their decision to post it on social media adds another layer of urgency to the situation.
The episode reaches a climax as Ju-yeon and Gun confront their feelings and the complexities of their relationships. Gun's decision to move on from his first love is met with Ju-yeon's desperation, leading to a heated exchange and a slap that echoes the emotional turmoil within them.
As the episode draws to a close, the characters are left to grapple with the fallout of their actions and the truths that have come to light. Han and Kim's belief that they can resolve the side effects after the second trial is challenged by Tae-oh's threat to reveal the truth to Gun if they don't allow him to perform a reset trial on Gun.
In the end, "Sea of Tears" is a poignant exploration of the characters' emotional pain and the lengths they will go to protect themselves and those they care about. The episode leaves viewers with a sense of anticipation for the upcoming conclusion, as the characters' fates hang in the balance.