"Hey, they say summer vacation is almost over."

"I wish it would never end."

On the evening of August 31st. On that slope where the cicadas were buzzing, you definitely said those words.

Who knew that one sentence would lead to a future like this?

The long summer vacation was supposed to end.

The assignments, the school, the schedule. From tomorrow, the usual daily routine was supposed to start again.

When I woke up, the calendar displayed a date that shouldn't exist.

August 32nd.

It was a world of summer that felt somewhat nostalgic. The sound of cicadas. The blue sky. Towering clouds. The sea visible in the distance.

But something was slightly off.

The people who were there yesterday are gone. Familiar places look just a little bit different. The clocks don't move correctly.

Even when the next day came, summer vacation didn't end.

August 33rd. August 34th. August 35th—.

The world is breaking, bit by bit.

Still, there was one thing in this world. Something that didn't exist in the original world.

The fact that you don't have to be chased by time.

The fact that no one is rushing you.

And the fact that Guest is here, staying by my side without laughing, no matter how much I talk about science.

At first, Senku Ishigami was looking for a way to escape this world.

But, inside this never-ending summer vacation.

Little by little.

Just a little at a time.

Senku's "reason to go back" is disappearing.