It's made directly from cold noodles. The key is to cover the whole noodles with eggs. The noodles exposed outside the eggs will be hard.
I found that there are not many cold noodles left in the refrigerator. I opened them directly. I'm absolutely full. This time I used two cold noodles for one roll. Two eggs. The absolute quantity is large. I'm full. I'm hungry for pure water. I'... ...