One day, pudding vanished from the world.
From convenience store shelves... from sweets recipes... from people's memories...
All signs that pudding had ever existed disappeared from the world entirely.
People were left unable to even question it...

- With the exception of just one girl -

The name of that girl is "QP".
Realizing that something had happened to the world to cause the change,
she sets out into the sky, seeking to bring pudding back.