Comforting Child

He Shuer grabbed Zhou Yunshen's hand and bit it.

"What's wrong?" Zhou Yunshen asked.

"Nothing. You're mine now, so I'm leaving a mark!"

"Oh!"

Many years later, He Shuer pulled Zhou Yunshen's arm over and left a row of bite marks on it.

Zhou Yunshen: "What's wrong?"

"Nothing. Just sharpening my teeth first thing in the morning."

"Oh."

Theme: Childhood sweethearts, reunited after a breakup