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🔔 Notify me about new seasonsSynopsis
Shy Natsu awakens as part of a group chosen to ensure the survival of humanity. Together, they have to survive on a changed Earth.
Themes
Episodes
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- E1 Spring BeginsNext upJun 28, 2019 · 25 min · ★ 8.2
Synopsis

Along with three others, Natsu wakes up with no idea what's happened. The four of them reach an island and try to figure out a way to survive.
- E2 Insects AwakenJun 28, 2019 · 24 min · ★ 8.0
Synopsis

Convinced that Botan has kidnapped them, Natsu and Arashi sneak out of camp and run into another survivor. Finally, Botan reveals what she knows.
- E3 Light SnowJun 28, 2019 · 24 min · ★ 7.0
Synopsis

Natsu's clumsiness indirectly leads Team Summer B to the rest of their group. Her memories help them figure out their location, and their next moves.
- E4 Autumn BeginsJun 28, 2019 · 26 min · ★ 7.3
Synopsis

Arashi, Natsu and Semimaru stumble upon the Team Autumn settlement in the former Kobe region. They seem to be thriving, but their leaders are tyrants.
- E5 Heavy SnowJun 28, 2019 · 25 min · ★ 7.3
Synopsis

In the ruins of Tokyo, Natsu, Arashi and Semimaru meet the sole survivor of Team Winter. Team Spring reaches Mt. Ogino Fuji and finds Natsu's message.
- E6 Grain RainJun 28, 2019 · 26 min · ★ 7.3
Synopsis

Aramaki joins Team Spring, despite Fujiko's doubts. Hana decides to search for Arashi after hearing that Aramaki met someone who fits his description.
- E7 Winter SolsticeJun 28, 2019 · 32 min · ★ 7.3
Synopsis

Hana and her companions discover a massive underground shelter. They find a survivor’s diary and learn the cruel fate of those who took refuge there.
- E8 Summer SolsticeJun 28, 2019 · 24 min · ★ 7.3
Synopsis

Hana's group and the Team Autumn survivors find the Spring settlement destroyed and abandoned. Momotaro wakes up among strangers.
- E9 Lesser HeatJun 28, 2019 · 25 min · ★ 6.7
Synopsis

To survive, Hana and the others work together with Team Summer A. On the ship, Hotaru's cousin Hibari tells Natsu that Hotaru is slowly dying.
- E10 Cold DewJun 28, 2019 · 26 min · ★ 7.0
Synopsis

Ango recalls his harsh upbringing in the program and the brutal graduation test that winnowed the survivors down to the final Team Summer A members.
- E11 Greater HeatJun 28, 2019 · 24 min · ★ 7.3
Synopsis

Hana becomes convinced that Ango will kill her if she stays in the village. Natsu and the others make landfall near the former Autumn settlement.
- E12 End of HeatJun 28, 2019 · 26 min · ★ 7.7
Synopsis

Ryo orders Hana to join him in searching for a water source underground, putting her in a vulnerable position. In the caves, Ango recalls Shigeru.
- E13 Frost DescendsMar 26, 2020 · 24 min
Synopsis

Team Summer A banishes Ango and Ryo as Haru and the others mourn the missing Hana. Aramaki leaves the settlement believing she is still alive.
- E14 Summer BeginsMar 26, 2020 · 24 min
Synopsis

Expecting a trap, Ango and Ryo find and observe Team Summer B, but they are unexpectedly welcomed by the easygoing group.
- E15 Grain in EarMar 26, 2020 · 24 min
Synopsis

The two newcomers help Team Summer B. As they get to know the group, Ryo doubts their ability to survive. Ango begins to see Natsu as Shigeru.
- E16 Autumnal EquinoxMar 26, 2020 · 24 min
Synopsis

The carefree group enjoys life at sea, but Ryo tests their survival skills. Natsu reveals that Team Summer B is for dropouts, angering Ango.
- E17 Vernal EquinoxMar 26, 2020 · 24 min
Synopsis

Suspicious, Botan searches Ryo and Ango's belongings while the others look for Arashi. Elsewhere, another survivor learns about the wilderness.
- E18 White DewMar 26, 2020 · 24 min
Synopsis

Team Summer B gets stuck in a bed of dense algae. they find a large ship and investigate, but Botan is wary. Stranded, Arashi sees the ship's kite.
- E19 Winter BeginsMar 26, 2020 · 24 min
Synopsis

The team members are separated after the ship's sudden movement. Arashi makes his way to help as Botan's group makes a discovery.
- E20 Lesser ColdMar 26, 2020 · 24 min
Synopsis

Ango's hallucinations lead to perilous situations for him and Arashi. Semimaru has a brush with death while Natsu gathers her courage.
- E21 Grain FullMar 26, 2020 · 25 min
Synopsis

A sanctuary in nature becomes a trap for small mammals and humans alike. Meanwhile, an iron-eating bacteria begins to spread throughout the ship.
- E22 Rain WaterMar 26, 2020 · 24 min
Synopsis

Fujiko and Chisa reunite with Hana. On the ship, the missiles begin launch prep while Team Summer B learns about Ango's past and the test.
- E23 Greater ColdMar 26, 2020 · 24 min
Synopsis

Hana readjusts to other humans. Team Summer B works together to manually disable the missiles, but a series of passcodes complicates the process.
- E24 Pure BrightnessMar 26, 2020 · 24 min
Synopsis

Problems persist in the ship as the spreading bacteria begins attacking. The missile countdown continues as the team makes a mad dash to exit.
Cast & crew
Nao ToyamaNatsu Iwashimizu (voice)
Jun FukuyamaArashi Aota (voice)
Katsuyuki KonishiSemimaru Asai (voice)
Kana AsumiMatsuri Tendou (voice)
Kazuhiko InoueKaname Mozunoto (voice)
Akira IshidaChimaki Yamori (voice)
Yoko HikasaHana Suguruno (voice)
Hirofumi NojimaHaru Yukima (voice)
Shizuka ItohFujiko Amacha (voice)
Kenta MiyakeAkio Haza (voice)
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