Plot Analysis Summary
A single-season narrative tracking four friends navigating time travel, historical survival, and personal revelations.
Story Structure — 5 Plot Phases
Arrival & Adaptation
The group is displaced to the Sengoku period and faces immediate survival challenges. They learn local customs, navigate eccentric household dynamics, and begin formulating plans to return home without altering history.
Key Events
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Club Struggles Begin — Captain Mai faces club management challenges while supporting members. Characters: Sumomo, Suguri
Location: Bowling Club
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Time Displacement — The group is unexpectedly transported to the past, facing immediate environmental danger. Characters: Sumomo, Suguri, Anzu, Natsume
Location: Sengoku Period
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Danger & Rescue — The girls confront immediate threats until a young ally intervenes to save them. Characters: Sumomo, Suguri, Anzu, Natsume
Location: Sengoku Wilderness
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Sister Dynamics — Suguri navigates interactions with her eccentric sisters while adjusting to Natsume's presence. Characters: Suguri, Natsume
Location: Sengoku Household
Bonds & Mysteries
As they settle into temporary routines, deeper friendships form through shared vulnerability and collaborative problem-solving. The return of the eldest sister introduces new perspectives and uncovers hidden household secrets.
Key Events
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Sister Dynamics — Suguri navigates interactions with her eccentric sisters while adjusting to Natsume's presence. Characters: Suguri, Natsume
Location: Sengoku Household
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Return Plan Brainstorm — The group collaborates on strategies to return home without altering historical timelines. Characters: Sumomo, Suguri, Anzu, Natsume
Location: Sengoku Household
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Lane Construction — Sumomo channels her energy into building a bowling lane as a coping mechanism. Characters: Sumomo, Suguri
Location: Sengoku Outskirts
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Bonding Over Plan B — Anzu finds common ground with Natsume while testing alternative return methods. Characters: Anzu, Natsume
Location: Sengoku Training Ground
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Sengoku Values Lesson — The girls learn local customs and life values from their hosts amid bandit threats. Characters: Sumomo, Suguri, Anzu, Natsume
Location: Sengoku Village
Secrets & Confrontations
The house's true purpose is revealed, forcing the sisters to confront their past and make difficult decisions. Tensions rise as they balance historical preservation with personal stakes.
Key Events
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Sengoku Values Lesson — The girls learn local customs and life values from their hosts amid bandit threats. Characters: Sumomo, Suguri, Anzu, Natsume
Location: Sengoku Village
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Natsume's Return — The long-lost eldest sister unexpectedly arrives, disrupting established routines. Characters: Natsume, Suguri
Location: Sengoku Household
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Hot Spring Mystery — Relaxation turns into investigation as the group uncovers a new household mystery. Characters: Sumomo, Suguri, Anzu, Natsume
Location: Hot Spring
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House Secret Revealed — The true purpose of the house is finally exposed, linking past and present. Characters: Natsume, Suguri
Location: Sengoku Household
Return & Strategy
Successfully navigating back to the present, the group studies regional history and coordinates a non-lethal rescue mission for their Sengoku allies. Planning intensifies as they prepare for the final confrontation.
Key Events
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Sister Fate Decision — A tense proposal emerges to determine which sister must face a critical consequence. Characters: Natsume, Suguri
Location: Sengoku Household
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Return to Present — The group successfully navigates back to their original timeline. Characters: Sumomo, Suguri, Anzu, Natsume
Location: Modern Day
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Historical Learning — They study the region's history and reflect on their Sengoku friends. Characters: Sumomo, Suguri, Anzu, Natsume
Location: Modern Archive
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Rescue Strategy — The group devises a non-lethal strategy to rescue their Sengoku allies. Characters: Sumomo, Suguri, Anzu, Natsume
Location: Modern Safehouse
Resolution & Farewell
The climax sees the group execute their strategy to defeat the antagonist without bloodshed. They return to normalcy, reflecting on the journey's emotional weight and cherishing the memories made.
Key Events
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Rescue Strategy — The group devises a non-lethal strategy to rescue their Sengoku allies. Characters: Sumomo, Suguri, Anzu, Natsume
Location: Modern Safehouse
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Defeating Kagetoki — The climax where the group executes their plan to neutralize the antagonist without killing. Characters: Sumomo, Suguri, Anzu, Natsume
Location: Sengoku Battlefield
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Farewell Reflection — The girls process the emotional weight of their journey and say goodbye to their past selves. Characters: Sumomo, Suguri, Anzu, Natsume
Location: Bowling Club
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Special Time Memory — The season closes with a poignant reflection on the heartwarming and mysterious adventure. Characters: Sumomo, Suguri, Anzu, Natsume
Location: Modern Day
Mai Otonashi is a second-year student and the captain of the Ikkokukan High School Bowling Club, and recently, she's struggled to win. Whenever she scores a Turkey, three consecutive strikes, she follows it up with an unbeatable split—the Snake Eyes. This is the story of Mai, Rina, Sayuri, Nozomi, and Nanase as they fight, fall, and rise again in pursuit of victory in the final days of summer.