第 9 集: Senku利用磁鐵製造發電機和燈泡，Gen Asagiri在一旁觀察。

During their ramen patronage, the gang are approached by Gen Asagiri, a magician from Senku's time, who had been sent by Tsukasa to confirm Senku's death but claims he will give a false report instead. Using the successfully completed iron, Senku takes advantage of a sudden thunderstorm to turn it into powerful magnets. While Gen uses his street magic to ward off a violent villager named Magma, the gang use the magnets to build a power generator which they manage to convince Kinro and Ginro to operate, leading to the reinvention of the lightbulb. (Source: Wikipedia)

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