For a child, Aoyama has knowledge comparable to an adult. As such, he is often teased by his classmates. He also has a crush on the friendly woman he recently met at a dental office. One morning, penguins start mysteriously appearing around his neighborhood. Nobody knows where they came from and how they managed to get there. Aoyama is determined to find out more, and he joins his new crush in researching the penguins. As time passes, they discover a levitating sphere which they nickname The Sea. Whatever goes into The Sea does not come back out, and the only things that can destroy it are the penguins. However, something horrifying is created when the penguins do... Penguin Highway follows Aoyama and the woman's research on the mysterious penguins' origin, as well as the many difficulties Aoyama faces throughout his investigation.

Hina Tsurugi and her family have just moved to a quaint seaside town. Hoping to savor the sight of the peaceful ocean, Hina stumbles upon a girl named Yuuki Kuroiwa—an upperclassman at her new school—who invites Hina to join her in fishing. Hina reels in an octopus, which falls onto her; being afraid of bugs and big creatures, she panics and begs Yuuki to remove it from her. Yuuki sees this as an opportunity to force Hina to join the school's Breakwater Club—a club where members gather, catch, and eat various types of marine life as their main activity. Although her attempts to refuse to join fail, Hina slowly begins to discover the hidden joy in fishing. Her view on the sport changes, now looking forward to all the delightful experiences she can take part in alongside her fellow club members.

Independent short animation by Shingo Tamagawa.

After a desperate battle and many losses, humans finally slay Godzilla—the monster that caused humanity to flee Earth 20 thousand years prior. But the creature Haruo Sakaki's troops killed was not alone; there existed another Godzilla on Earth yet to be defeated. Grievously wounded from the first conflict, Sakaki wakes up in the home of a young girl who is a member of the Houtua tribe. Bearing a shocking resemblance to humans, the Houtua have adapted to survive the changed climate of the planet that had long been abandoned. With most of their resources depleted, the remaining members of Sasaki's special forces struggle with the decision to abandon their mission and their home planet or to fight an improbable battle. Hope is not completely lost however, as the members from the Bilusaludo race of aliens discover remnants of their anti-Godzilla weapon Mechagodzilla. Even with this powerful weapon in their arsenal, victory seems impossible to grasp: Godzilla has spent all this time evolving and preparing to defeat anyone who dares to challenge its superiority.