Asa: The Girl Who Turned into a Pair of Chopsticks by Natsuko Imamura

Asa tries to give her classmate a biscuit.
Nami evades her classmates’ playground game of acorn-throwing.
Happy decides she’s not interested in doing anything other than lying down on her sofa.

Each of these three stories begins in a reasonable place—but by the end you’ll find yourself in another world altogether.

(Faber)