"Appa, wait! Don't-"

Pop goes the bottle cap, fizz oozes out. The little boy has warned his father a second too late. However, he finds his father's nonchalant reaction a bit too strange.

A gleeful smile stretches across his father's face. "Little Minho, do you exactly know why this happens?"

The boy shakes his head, somewhat bewildered. With enthusiasm sparkling in his eyes, the father, being a chemist by profession, proceeds to explain the theory behind the mysterious fizz.

Two boys, one with an umbrella and the other drenched in mud pass by their window.

"Hey guys! Wait for me!"