Story Structure — 4 Plot Phases
Tragic Separation
The Kashiwagi parents die in a car accident, forcing their six children to live in separate families.
Key Events
-
Parents' Death — Kashiwagi couple killed in car accident Characters: Tatsuya Kashiwagi, Koyuki Kashiwagi
Location: Car accident site
-
Family Separation — Six siblings separated to different families Characters: Tatsuya Kashiwagi, Koyuki Kashiwagi
Location: Various foster homes
-
Marathon Career — Tatsuya pursues marathon running career Characters: Tatsuya Kashiwagi, Coach
Location: Running track
Divergent Paths
The siblings grow apart, with Tatsuya becoming a marathon runner while his siblings pursue different lifestyles.
Key Events
-
Marathon Career — Tatsuya pursues marathon running career Characters: Tatsuya Kashiwagi, Coach
Location: Running track
-
Career Injury — Tatsuya forced to retire due to injuries Characters: Tatsuya Kashiwagi, Coach
Location: Hospital
-
Laundry Shop Opening — Tatsuya opens small laundry business Characters: Tatsuya Kashiwagi
Location: Small shop
-
Marriage Proposal — Tatsuya plans to marry coach's daughter Characters: Tatsuya Kashiwagi, Coach's Daughter
Location: Restaurant
-
Reunion Idea — Tatsuya proposes family reunion plan Characters: Tatsuya Kashiwagi, Koyuki Kashiwagi
Location: Laundry shop
The Reunion Quest
Tatsuya, now a laundry shop owner, begins his mission to reunite his scattered siblings despite their resistance.
Key Events
-
Reunion Idea — Tatsuya proposes family reunion plan Characters: Tatsuya Kashiwagi, Koyuki Kashiwagi
Location: Laundry shop
-
Sibling Reactions — Mixed reactions to reunion proposal Characters: Tatsuya Kashiwagi, Koyuki Kashiwagi
Location: Various locations
-
Overcoming Obstacles — Tatsuya works to overcome siblings' resistance Characters: Tatsuya Kashiwagi, Koyuki Kashiwagi
Location: Various locations
-
Marriage Sacrifice — Tatsuya gives up marriage for family Characters: Tatsuya Kashiwagi, Coach's Daughter
Location: Restaurant
Sacrifice and Unity
Tatsuya sacrifices his personal happiness to bring the family together, ultimately achieving his dream of living 'under one roof'.
Key Events
-
Marriage Sacrifice — Tatsuya gives up marriage for family Characters: Tatsuya Kashiwagi, Coach's Daughter
Location: Restaurant
-
Family Reunion — All siblings reunite under one roof Characters: Tatsuya Kashiwagi, Koyuki Kashiwagi
Location: Family home
