February 2nd, the twenty-eighth day of the lunar year.
According to the customs of Lian Province, on the twenty-eighth day, it's traditional to "wash away the dirt," meaning it's time to do a thorough house cleaning to get rid of a year's worth of dust, tissues, sunflower seed shells, snack wrappers, and coins—one jiao, one yuan, ten yuan, and even one-hundred-yuan bills.
When Ren Suo was young, his mom lured him into cleaning with this kind of "treasure hunt" trick. As he grew up, because there were things in his bedroom that couldn't be seen by others, he also had to clean by himself.
Although Ren Suo had already cleaned his house spotlessly, when he took the elevator up to the sixth floor carrying Luna, he wasn't surprised to see Yi Zhao rolling up his sleeves and wiping the door of apartment 602. It's common for people to clean on specific days; not everyone, like him, is excellent enough to make such good behavior a daily habit.
