Story Structure — 4 Plot Phases
Season 1: Innocent Beginnings and Routine
The School Living Club establishes its daily routines and mission to experience school life. Yuki's optimism and Megu's mentorship form the foundation of their sheltered existence. The group navigates minor disruptions like power outages while maintaining their structured environment.
Key Events
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Club Formation and Daily Routine — The School Living Club establishes its core mission to experience school life beyond the classroom. Characters: Yuki Takeya, Kurumi Ebisuzawa, Yuuri "Rii-san" Wakasa, Megumi "Megu-nee" Sakura
Location: School Classroom
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Summer Plans and School Night — Yuki prepares for summer traditions while Megu oversees her academic progress. Characters: Yuki Takeya, Megumi "Megu-nee" Sakura
Location: School Grounds
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Power Outage and Classroom Camping — The club adapts to a power outage by camping indoors, maintaining morale through conversation. Characters: Yuki Takeya, Kurumi Ebisuzawa, Yuuri "Rii-san" Wakasa, Megumi "Megu-nee" Sakura
Location: School Classroom
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Megu's Flashback to Outbreak — Megu recalls the day the outbreak began, revealing the origin of their current situation. Characters: Megumi "Megu-nee" Sakura
Location: School Grounds
Season 1: Exploration and New Bonds
The club embarks on a sanctioned field trip to the mall, venturing beyond their usual boundaries. They successfully raid supplies, discover a puppy, and rescue Mii-kun from hiding. These events expand the club's membership and strengthen their internal cohesion.
Key Events
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Megu's Flashback to Outbreak — Megu recalls the day the outbreak began, revealing the origin of their current situation. Characters: Megumi "Megu-nee" Sakura
Location: School Grounds
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Mall Field Trip Decision — Yuki proposes a sanctioned field trip to the mall, overcoming initial rule-based hesitation. Characters: Yuki Takeya, Kurumi Ebisuzawa, Yuuri "Rii-san" Wakasa
Location: School Classroom
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Supermarket Raid and Puppy Discovery — The group raids the basement for supplies and discovers a stray puppy. Characters: Yuki Takeya, Kurumi Ebisuzawa, Miki "Mi-kun" Naoki
Location: Mall Supermarket
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Fifth Floor Rescue — The group locates Mii-kun hiding on the fifth floor and successfully brings her back. Characters: Yuki Takeya, Kurumi Ebisuzawa, Miki "Mi-kun" Naoki
Location: Mall Fifth Floor
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New Member Welcome and Tour — Mii-kun and the puppy are officially welcomed, and a full school tour is conducted. Characters: Yuki Takeya, Megumi "Megu-nee" Sakura, Miki "Mi-kun" Naoki, Kurumi Ebisuzawa, Yuuri "Rii-san" Wakasa
Location: School Grounds
Season 1: Quiet Interludes and Foreshadowing
Daily life resumes with tutoring sessions, rooftop recreation, and club maintenance. The group discusses future plans and graduation, creating moments of tranquility. However, underlying tensions emerge as they investigate Megu's secrets and prepare for potential threats.
Key Events
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Field Day Event — The club celebrates Mii-kun's integration with a lively field day event. Characters: Yuki Takeya, Kurumi Ebisuzawa, Yuuri "Rii-san" Wakasa, Megumi "Megu-nee" Sakura, Miki "Mi-kun" Naoki
Location: School Grounds
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Study Session and Letter Writing — Mii-kun tutors Yuki, inspiring the club to write a message to the outside world. Characters: Yuki Takeya, Miki "Mi-kun" Naoki
Location: School Classroom
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Rooftop Bath and Future Talk — The club cleans Taromaru and discusses graduation plans while drying clothes in the sun. Characters: Yuki Takeya, Kurumi Ebisuzawa, Yuuri "Rii-san" Wakasa, Miki "Mi-kun" Naoki
Location: School Rooftop
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Secret Key Investigation — Insomnia leads Mii-kun and Rii-san to search for the lock to Megu's secret key. Characters: Miki "Mi-kun" Naoki, Yuuri "Rii-san" Wakasa
Location: School Club Room
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Rooftop Pool Cleaning — The club transforms the rooftop water tank into a temporary pool, finding temporary relief. Characters: Yuki Takeya, Kurumi Ebisuzawa, Yuuri "Rii-san" Wakasa, Megumi "Megu-nee" Sakura, Miki "Mi-kun" Naoki
Location: School Rooftop
Season 1: Crisis Escalation and Siege
A severe storm triggers a catastrophic breach as zombies flood the school. The group faces immediate danger, with Kurumi bitten and Taromaru lost. Despair threatens to overwhelm them until Yuki's intervention restores their resolve. The season concludes with the club bracing against an overwhelming siege.
Key Events
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Rooftop Pool Cleaning — The club transforms the rooftop water tank into a temporary pool, finding temporary relief. Characters: Yuki Takeya, Kurumi Ebisuzawa, Yuuri "Rii-san" Wakasa, Megumi "Megu-nee" Sakura, Miki "Mi-kun" Naoki
Location: School Rooftop
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Rainy Day and Taromaru Disappearance — Heavy rain drives Taromaru beyond the barricade, prompting a frantic search. Characters: Yuki Takeya, Miki "Mi-kun" Naoki, Kurumi Ebisuzawa
Location: School Club Room
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Barricade Breach and Flood — Zombies flood the school during a storm, knocking out power and breaching defenses. Characters: Yuki Takeya, Kurumi Ebisuzawa, Yuuri "Rii-san" Wakasa, Megumi "Megu-nee" Sakura, Miki "Mi-kun" Naoki
Location: School Grounds
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Kurumi's Bite and Unconsciousness — Kurumi is bitten during the breach and falls unconscious, leaving Rii-san to prepare for a promise. Characters: Kurumi Ebisuzawa, Yuuri "Rii-san" Wakasa
Location: School Grounds
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Rii-san's Resolve and Mii-kun's Despair — Rii-san steel herself to keep her promise while Mii-kun loses hope after losing Taromaru. Characters: Yuuri "Rii-san" Wakasa, Miki "Mi-kun" Naoki
Location: School Club Room
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Yuki's Rescue Intervention — Yuki intervenes to save Mii-kun from a zombie, restoring her will to fight. Characters: Yuki Takeya, Miki "Mi-kun" Naoki
Location: School Grounds
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School Under Siege — Swarms of zombies completely surround the school, placing the club in grave peril. Characters: Yuki Takeya, Kurumi Ebisuzawa, Yuuri "Rii-san" Wakasa, Megumi "Megu-nee" Sakura, Miki "Mi-kun" Naoki
Location: School Grounds
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Club's Perilous Stand — The club braces for the final onslaught, holding their ground against the overwhelming threat. Characters: Yuki Takeya, Kurumi Ebisuzawa, Yuuri "Rii-san" Wakasa, Megumi "Megu-nee" Sakura, Miki "Mi-kun" Naoki
Location: School Club Room
Yuki Takeya, Kurumi Ebisuzawa, Yuri Wakasa, and Miki Naoki decide to stay over at school. Along with the school adviser Megumi Sakura, they suddenly find themselves to be the final survivors of a zombie attack, and continue to live and survive at the school.