He Shuer grabbed Zhou Yunshen's hand and put it to his mouth and took a bite.
"What's wrong?" Zhou Yunshen asked.
"Nothing, you are mine now, I will mark you!"
"Oh!"
Many years later, He Shuer took Zhou Yunshen's arm and made a series of teeth marks.
Zhou Yunshen: "What's wrong?"
"It's okay, get up early and grind your teeth."
"Oh"
Intention: Childhood sweethearts, reunited after breaking the mirror