Plot Analysis Summary
Several interconnected farewell, friendship, and preparation stories lead to Rin's final relay before leaving for Australia.
Story Structure — 5 Plot Phases
A New Poolside Beginning
Haruka prepares to enter college and searches for an apartment in Tokyo with Makoto. Kisumi helps him secure a place near a pool, where they encounter Misaki and learn about Nao's past coaching.
Key Events
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Tokyo Apartment Search — Haruka searches for housing in Tokyo while preparing to enter college. Characters: Haruka Nanase
Location: Tokyo
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Kisumi Offers Housing Help — Kisumi helps Haruka lease an apartment through his uncle's rental agency. Characters: Haruka Nanase, Kisumi Shigino (voice)
Location: Rental agency
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Young Swimmer Discovered — Haruka and Makoto find Misaki inside the apartment during their visit. Characters: Haruka Nanase, Misaki Kuramoto (voice)
Location: Apartment
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Nao's Coaching Revealed — The story reveals that former tenant Nao coached Misaki in swimming. Characters: Haruka Nanase, Misaki Kuramoto (voice), Nao Serizawa (voice)
Location: Apartment
Gifts Beneath the Steam
Aiichiro and Momotaro organize a graduation surprise for Rin using hot-spring tickets. The trip mixes playful competition, training-camp advice, and a final exchange of good luck charms.
Key Events
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Graduation Gift Planning — Aiichiro considers a graduation present for Rin. Characters: Aiichiro Nitori, Rin Matsuoka, Momotaro Mikoshiba
Location: Samezuka Academy
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Hot Spring Tickets Won — Momotaro wins tickets and joins Aiichiro in planning the surprise. Characters: Aiichiro Nitori, Momotaro Mikoshiba, Rin Matsuoka
Location: Samezuka Academy
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Scavenger Hunt Surprise — Aiichiro and Momotaro present the tickets to Rin through an elaborate scavenger hunt. Characters: Aiichiro Nitori, Momotaro Mikoshiba, Rin Matsuoka
Location: Samezuka Academy
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Capybara Plush Competition — Momotaro enters a heated competition over a capybara plush toy. Characters: Momotaro Mikoshiba, Rin Matsuoka
Location: Anago Hot Springs
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Training Camp Advice — Natsuya serves as chaperone and offers thoughtful advice during the camp. Characters: Natsuya Kirishima (voice), Momotaro Mikoshiba
Location: Training camp
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Good Luck Charms Given — Aiichiro and Momotaro give Rin and his companion good luck charms. Characters: Aiichiro Nitori, Momotaro Mikoshiba, Rin Matsuoka
Location: Road back from Anago Hot Springs
The Strange Recruitment Manual
Rei, Nagisa, and Gou film a recruitment video for the next school year. Their investigation of the PKH East manual reveals an unusual former recruitment tactic but ultimately motivates Rei to complete the project.
Key Events
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Recruitment Video Begins — Rei, Nagisa, and Gou begin filming a recruitment video. Characters: Rei Ryugazaki, Nagisa Hazuki, Gou Matsuoka (voice)
Location: Iwatobi High School
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Old Manual Found — Gou discovers an old manual containing the strategy called PKH East. Characters: Rei Ryugazaki, Nagisa Hazuki, Gou Matsuoka (voice)
Location: Iwatobi High School
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PKH East Investigated — The trio investigates the meaning of the manual's unusual recruitment strategy. Characters: Rei Ryugazaki, Nagisa Hazuki, Gou Matsuoka (voice)
Location: Iwatobi High School
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Handsome Recruiter Revealed — They learn PKH East referred to Perfect Kinniku Handsome Azuma. Characters: Rei Ryugazaki, Nagisa Hazuki, Gou Matsuoka (voice)
Location: Iwatobi High School
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Recruitment Plan Reframed — Although disappointed by the explanation, the discovery inspires Rei to finish the video. Characters: Rei Ryugazaki, Nagisa Hazuki, Gou Matsuoka (voice)
Location: Iwatobi High School
A Farewell Misunderstanding
The Iwatobi and Samezuka teams prepare a surprise party before Rin leaves for Australia. Rin misinterprets Gou's meeting with Momotaro and becomes anxious about losing her.
Key Events
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Farewell Party Planned — The Iwatobi and Samezuka teams prepare a surprise party for Rin. Characters: Rin Matsuoka, Gou Matsuoka (voice), Momotaro Mikoshiba, Nagisa Hazuki
Location: Iwatobi High School
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Rin Misreads Gou's Meeting — Rin sees Gou with Momotaro and assumes they are dating. Characters: Rin Matsuoka, Gou Matsuoka (voice), Momotaro Mikoshiba
Location: Swimming facility
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Relay Challenge Explained — Rin asks Haruka for help and learns Momotaro wanted a toy Rin received at a burger restaurant. Characters: Haruka Nanase, Rin Matsuoka, Momotaro Mikoshiba
Location: Swimming facility
The Final Relay
Rin asks Haruka for help and discovers that Momotaro's apparent romantic involvement with Gou is actually connected to a toy and a relay challenge. Rin defeats the Mikoshiba brothers, after which the teams celebrate his departure.
Key Events
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Mikoshiba Brothers Relay — Rin races Momotaro and Seijuro in the planned relay and wins. Characters: Rin Matsuoka, Momotaro Mikoshiba, Seijuro Mikoshiba (voice)
Location: Swimming pool
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Departure Celebration — The swim clubs celebrate Rin's departure for Australia after the relay. Characters: Haruka Nanase, Rin Matsuoka, Momotaro Mikoshiba, Nagisa Hazuki, Rei Ryugazaki, Gou Matsuoka (voice), Aiichiro Nitori
Location: Swimming facility
