He personally forced the man into a desperate situation and crushed all tenderness and expectations with his own hands.
It wasn't until the person completely disappeared from his life that he realized the bone-gnawing regret.
Year after year, he made a wish in front of the moonlight and traveled across thousands of rivers and mountains, just to find the person he lost, hoping for a belated fulfillment.
Intention: Know your mistakes and pursue them later, make a wish and hope for your return