It's a dark night, but Pin couldn't sleep tonight. He always went to bed at a fixed time, as his strict childhood had taught him. But the reason for his insomnia was still his son, who had flown away in search of new knowledge. His Bibi. Ping understood that Bibi would be bored here, he had studied everything he could, and now it was time to let him go. But it was so lonely..

Ping was sitting on the seashore, looking at the vast expanse of water and the light of a large and beautiful moon reflected on the water with brilliant highlights.

He missed him...