A person goes to the library, a person goes to the gym, a person goes to a civil servant, a person goes to eat, and a person goes to eat hot pot. The saddest thing is that a person eats hot pot, which normal people can't understand at all. That kind of loneliness, watching others in pairs, or lovers or friends, and then eating hot pot alone, buying things entirely because of their own hobbies, like to buy. So sometimes a person feels lonely, but he doesn't want to take off the bill, because he has to face many problems when taking off the bill, and now he doesn't have so much time and energy to do it.