There is Nanming and Tianchi in this world. It is tens of thousands of miles wide, but has only one fish. The fish is a shark, but its body is thousands of miles wide, it is beautiful and can speak, and it knows everything about everything.
Nanming is a Tianchi, but the water in it boils all year round. Beiming is also a Tianchi, but the water in it is always cold.
The fish Nanming has helped many people who were depressed by love, but most of them separated. Nan Ming, the fish, had met many people, but most of them left.
Nan Ming didn't know what it would be like if one day she could meet Bei Ming.