Story Structure — 5 Plot Phases
An Accidental Beginning
Kim Su-jin suffers rejection and encounters Choi Chul-soo at a convenience store. After receiving forgiveness from her father, she chooses to begin again and meets Choi Chul-soo at a construction site.
Key Events
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Su-jin Faces Rejection — Kim Su-jin is rejected by her married colleague and becomes depressed. Characters: Kim Su-jin
Location: Workplace
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Convenience Store Encounter — Kim Su-jin bumps into Choi Chul-soo and experiences a brief misunderstanding. Characters: Kim Su-jin, Choi Chul-soo
Location: Convenience store
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A New Beginning — After receiving her father's forgiveness, Kim Su-jin decides to restart her life. Characters: Kim Su-jin
Location: Kim Su-jin's home
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Construction Site Reunion — Kim Su-jin recognizes the convenience-store man at her father's construction site. Characters: Kim Su-jin, Choi Chul-soo
Location: Construction site
Love Across Differences
Kim Su-jin actively courts Choi Chul-soo despite their social differences. Their affectionate courtship eventually leads to marriage and a shared home.
Key Events
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Chul-soo Revealed — Choi Chul-soo is identified as the construction foreman and a student architect. Characters: Kim Su-jin, Choi Chul-soo
Location: Construction site
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Su-jin Begins Courting — Kim Su-jin actively courts Choi Chul-soo despite their social differences. Characters: Kim Su-jin, Choi Chul-soo
Location: Various courtship locations
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Courtship Deepens — Affectionate events bring the couple closer and strengthen their relationship. Characters: Kim Su-jin, Choi Chul-soo
Location: Various courtship locations
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Marriage Begins — Their courtship culminates in marriage and a shared domestic life. Characters: Kim Su-jin, Choi Chul-soo
Location: Their home
Domestic Happiness Fractures
The married couple settles into domestic life while Choi Chul-soo designs their dream house. Kim Su-jin's forgetfulness grows more serious after a stove fire, leading them to seek medical help.
Key Events
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Dream House Designed — Choi Chul-soo designs the couple's dream house after their marriage. Characters: Kim Su-jin, Choi Chul-soo
Location: Their home
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Domestic Adjustment — Kim Su-jin learns to become a housewife as they settle into married life. Characters: Kim Su-jin, Choi Chul-soo
Location: Their home
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Forgetfulness Appears — Kim Su-jin begins displaying repeated signs of forgetfulness. Characters: Kim Su-jin, Choi Chul-soo
Location: Their home
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Stove Fire — A fire starts because Kim Su-jin forgets to turn off the stove. Characters: Kim Su-jin, Choi Chul-soo
Location: Their home
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Fire Extinguished — Choi Chul-soo extinguishes the fire, exposing the seriousness of the incidents. Characters: Kim Su-jin, Choi Chul-soo
Location: Their home
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Medical Help Sought — The couple seeks medical help because Kim Su-jin's forgetfulness continues. Characters: Kim Su-jin, Choi Chul-soo
Location: Medical facility
The Memory Diagnosis
Kim Su-jin is diagnosed with early-onset Alzheimer's disease. Denial and fear give way to a commitment to remain together as the illness progresses.
Key Events
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Diagnosis Revealed — Kim Su-jin is diagnosed with early-onset Alzheimer's disease. Characters: Kim Su-jin, Choi Chul-soo
Location: Medical facility
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Denial and Fear — Initially in denial, Kim Su-jin becomes overwhelmed by the prospect of forgetting her husband. Characters: Kim Su-jin, Choi Chul-soo
Location: Their home
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Commitment Under Illness — The couple commits to staying together as Kim Su-jin's disease progresses. Characters: Kim Su-jin, Choi Chul-soo
Location: Their home
Love Beyond Recognition
Kim Su-jin leaves their home for assisted living and eventually fails to recognize Choi Chul-soo. He remains devoted, recreates their first meeting, and declares his love during the sunset ending.
Key Events
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Assisted Living Decision — Kim Su-jin leaves their home and checks into an assisted living facility. Characters: Kim Su-jin, Choi Chul-soo
Location: Their home
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Recognition Is Lost — Kim Su-jin no longer recognizes Choi Chul-soo, who hides his tears behind sunglasses. Characters: Kim Su-jin, Choi Chul-soo
Location: Assisted living facility
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First Meeting Recreated — Choi Chul-soo recreates their first meeting with Kim Su-jin's friends and family present. Characters: Kim Su-jin, Choi Chul-soo
Location: Convenience store
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Sunset Declaration — Choi Chul-soo rides with Kim Su-jin at sunset and tells her, "I love you." Characters: Kim Su-jin, Choi Chul-soo
Location: Car at sunset
A young couple's love is tested when Sun-jin is diagnosed with a rare form of Alzheimer's disease.