This nearly wordless picture book features just one word: PFFT, capturing the sound of a fart. The gorgeous, distinctive illustrations reflect Taiwanese culture while also conveying the universal embarrassment—and humor—of passing gas.

Today is a beautiful day, and Little Spring is heading to the zoo. But shortly after boarding the bus, he can't help but let out a PFFT, causing the surrounding passengers to cover their noses.

After getting off the bus, on a whim, he steps into an art gallery. But once again, he can't control himself and lets out a few more PFFTs and PFFBTTTs. This time, not only do the museum visitors flee, but even the plants wither, and the characters in the famous paintings shed tears or scream in horror.

Before even reaching the zoo, the protagonist continues PFFT-ing his way through a traditional grocery store, a barbershop, an ice shop, and a conveyor belt sushi restaurant. Even at the zoo, where he hopes to relax in a hot spring with the capybaras, his PFFT-ing drives them all out of the pool.

Back home, he tells his mother about his day. As he enjoys steamed sweet potatoes with her, he suddenly hears a PFFT—and it’s not from him. At the story's end, he feels a warm sense of acceptance and love from his family.

This marvelous picture book, filled with sound, smell, and humor, revolves around a single word. With its surprising twist highlighting the warmth of family bonds, this story is sure to delight readers from all over the world.