7SEEDS

Along with three others, Natsu wakes up without an idea of what has happened. The quartet reaches an island to try to figure out a way to survive.

Convinced that Botan has kidnapped them, Natsu and Arashi sneak out of camp and run into another survivor. Botan reveals what she knows.

Natsu's clumsiness indirectly leads Team Summer B to the rest of the group. Her memories help them figure out their location and their next moves.

Arashi, Natsu and Semimaru stumble on the Team Autumn settlement in the former Kobe region. They seem to be thriving, but their leaders are tyrants.

In the ruins of Tokyo, Natsu, Arashia dn Semimaru meet Team Winter's sole survivor. Team Spring reaches Mt. Ogino Fuji and finds NNatsu's message.

Aramaki joins Team Spring, despite Fujiko having doubts. Hana decides to search for Arashi after hearing that Aramaki met someone who fits his description.