If you can't finish the rice the day before, get up early and add some water to make porridge. This kind of rice is very famous, so you must never treat it as leftovers.
Go to Xinyang farmhouse and you will know that this meal is called "hot meal" and it is a daily food. It's not that you can't eat leftovers, but that you deliberately cook more and save it for two days to get up early for breakfast. When you are free, boil water and vegetables and make porridge. If you don't have time, you can rush in with boiling water to eat pickles, which is faster than instant noodles.
I didn't know this kind of rice was called "soaking rice" until I went to Shanghai. On that day, I specially cooked more rice, leaving enough for breakfast. Not only that, but also cook a few more dishes and leave them with the rice.