Senku helps Kohaku bring hot water back to her village for her ill sister. Kohaku tells Senku about her village and that it has forty people. Senku is told he cannot enter the village. Senku explains to Chrome about the history of mankind.

Senku feeds the villagers ramen so they can help him make iron. Senku meets Asagiri Gen a man who's been unpetrified and is working for Tsukasa. Asagiri decides to help Senku. Senku wants to make a generator with the help of lightning.