Sonny Boy

S1 • E1

The Island at the Far End of Summer

While lying on the floor in the classroom, Nagara is approached by Nozomi, who removes a feather that was on his head. She wonders if its fun lying on the floor all the time and he confirms.

S1 • E2

Aliens

The students have relocated to a nearby island, where they have no shortage of food, and can get whatever they want through Mizuho's power.

S1 • E3

The Cat Who Wore Sandals

Nagara, Nozomi, Asakaze, and Rajdhani continue searching for new worlds. Students start going missing, and their bodies are found "frozen" into black shells, so Pony asks Mizuho to look into the matter.

S1 • E4

The Great Monkey Baseball

Nagara began to grow and no longer remained indifferent towards unchangeable facts; instead, he started swinging the baseball bat in determination.

S1 • E5

Leaping Classrooms

S1 • E6

The Long Goodbye

Nagara and Rajdhani arrive in a world called "Filmmaker," and discover a movie filmed entirely from Nagara's POV. Mizuho discovers a stray dog by the name of Yamabiko, claiming to be another castaway who attended the same school.

S1 • E7

Road Book

Having learned the truth about This World, groups led by Ms. Aki and Hoshi prepare to go their separate ways. Nagara finds himself in an upside-down world he cannot freely leave, and is forced to work on building a Tower of Babel,

S1 • E8

Laughing Dog

While traveling the wilderness, Mizuho asks Yamabiko how he became a dog. Yamabiko then relates how, 5000 years ago, he wandered different worlds all alone, until meeting a girl to whom he gradually opened his heart.

S1 • E9

This Salmon Chazuke, Forgot the Salmon

S1 • E10

Summer and Shura

Kossetsu reads the minds of others passing by in a train station world using her true power. She pines for Asakaze, knowing that he is interested in Nozomi, and that Nozomi is the only one who can change him.

S1 • E11

Boy and the Sea

After learning of Nozomi's death from Kossetsu's letter, Nagara and Mizuho hold a memorial service for her. While advancing the project to return home, they are visited by an old friend.

S1 • E12

A Two-Year Recess

Nagara attends the opening ceremony of his technical school, but feels out of place. He recalls what happened after blasting off into space, questioning if he ever really went adrift.