Do you know that there is a tunnel like this located after passing through "Exhibition Room II" on the 2nd floor and entering "Everyone's Square"?

Many children played in this tunnel during the summer holidays.
"I wonder what's inside?"

Inside, you can see Nobita sound asleep!
But... he's upside down, isn't he?
Why could that be...?

The hint to solve that mystery is hidden in this story!
Be sure to read it at the "Manga Corner."

Do you know that there is a tunnel like this located after passing through "Exhibition Room II" on the 2nd floor and entering "Everyone's Square"?

Many children played in this tunnel during the summer holidays.
"I wonder what's inside?"

Inside, you can see Nobita sound asleep!
But... he's upside down, isn't he?
Why could that be...?

The hint to solve that mystery is hidden in this story!
Be sure to read it at the "Manga Corner."