Even If This Love Disappears Tonight (2026) Plot Summary & Ending Explained

Jae-won is coerced into falsely confessing his feelings to stop severe bullying against his classmate. He hopes the confession will end the harassment, but Seo-yoon accepts immediately and records him as her boyfriend, forcing him to deal with the consequences of his lie. What starts as deception gradually becomes genuine as he spends time with her.

Foreshadowing: The bullying incident is mentioned early as a catalyst that sets their relationship in motion.

• jae-won confession
• bullying
• fake relationship
• coerce

Seo-yoon has anterograde amnesia caused by a traffic accident. Each morning her memory resets to the day of the accident, meaning she cannot form new long-term memories. She relies entirely on written notes, photographs, and recordings to understand her life, relationships, and daily activities. Every day is essentially a fresh start.

Foreshadowing: The opening scene shows her recording a quiet moment with her mother, establishing her need to preserve memories.

• anterograde amnesia
• memory loss
• daily reset
• condition

After Jae-won dies from his worsening heart condition, Ji-min fulfills his final request to spare Seo-yoon the trauma of repeatedly reliving the loss. Since Seo-yoon's memory resets each day, she would have to grieve him anew every morning, which would be emotionally devastating. Ji-min hides all records of him, her diary, phone, and shared memories, so she never has to experience that pain.

Foreshadowing: Jae-won's hidden heart condition is revealed before his sudden decline.

• ji-min
• memory erasure
• protect
• grief
• death

Seo-yoon forgets Jae-won entirely because Ji-min systematically removes all traces of him from her life. Ji-min hides her diary, deletes records from her phone, and removes any evidence of their relationship. Without these external memory aids, Seo-yoon has no way to remember Jae-won since her condition prevents her from forming new memories that persist between days.

Foreshadowing: The bus incident earlier already demonstrated how fragile their bond is when she cannot recognize him.

• forget
• memory erase
• records
• diary

Seo-yoon accepts immediately because she has no memory of previous interactions with him. Due to her amnesia, every new day is like meeting someone for the first time. When Jae-won confesses, she has no reason to doubt his sincerity and decides to give the relationship a chance, documenting everything about him in her notes for future reference.

Foreshadowing: Her first encounter with Jae-won on the bus happens before the false confession, establishing initial attraction.

• confession
• accept
• first meeting
• new day

Jae-won dies from a worsening heart condition that was hidden from Seo-yoon throughout their relationship. His health deteriorates suddenly, leading to his death and leaving behind his grieving father Kim Sang-hyeon. He keeps his illness secret to protect Seo-yoon from additional emotional burden during their time together.

Foreshadowing: Jae-won's hidden truth is foreshadowed by his own secrecy about his condition.

• heart condition
• illness
• death
• hospital

Seo-yoon learns the truth when Ji-min finally confesses after her condition begins to improve. Ji-min returns all the hidden records, her diary, phone, and shared memories. Seo-yoon discovers she has been unconsciously drawing sketches of a mysterious boy she couldn't identify, which prompts Ji-min to reveal everything.

Foreshadowing: The mysterious drawings appear throughout the period when she has forgotten Jae-won.

• discover truth
• drawings
• diary
• ji-min confession

The drawings represent Jae-won, whom Seo-yoon has forgotten due to Ji-min's memory erasure. Despite losing all explicit records of him, Seo-yoon continues drawing him unconsciously, suggesting her emotional memory persists even when her explicit memories are erased. These sketches become the key clue that leads Ji-min to finally reveal the truth.

Foreshadowing: The drawings accumulate over time in her room, unnoticed until Ji-min discovers them.

• drawings
• sketches
• unconscious memory
• boy

Seo-yoon desperately avoids falling asleep on the bus because it means she loses time and context. When she does fall asleep and wakes, she cannot recognize Jae-won, her external memory references are not immediately accessible. She panics and runs away through the rain, unable to understand who this stranger is claiming to be her boyfriend. The incident reveals how fragile their relationship is when she cannot access her notes.

Foreshadowing: The importance of staying awake is established early as a coping mechanism for her condition.

• bus sleep
• panic
• recognize
• forgot
• rain

Seo-yoon's condition gradually improves, allowing her to form memories that persist beyond a single day. This improvement enables her to eventually process the truth about Jae-won when Ji-min confesses. The healing is slow but meaningful, allowing her to finally hold onto memories and work through her grief rather than resetting each morning.

Foreshadowing: The timeline notes her condition slowly beginning to improve before the truth is revealed.

• recovery
• improve
• memory
• heal
• gradual

At the end, Seo-yoon visits the beach at sunset, imagining Jae-won gently tying her shoelaces one final time. This moment represents her acceptance of his death and her ability to move forward while still honoring their connection. It signifies closure, she can now remember him willingly through her diary rather than being trapped in endless forgetting, and she can imagine happy moments with him even though he is gone.

Foreshadowing: The beach was a location they shared during their relationship, established through the timeline.

• beach
• shoelaces
• acceptance
• closure
• sunset

Jae-won's father Kim Sang-hyeon is left grieving after his son's death. He is mentioned as the surviving family member who must cope with the loss. His grief contrasts with Seo-yoon's temporary forgetting, both experience loss, but only Jae-won's father carries the permanent memory of his son's death.

Foreshadowing: Jae-won's family situation is hinted at through mentions of his father.

• father
• kim sang-hyeon
• grief
• family