Saitama-sensei accidentally slaps Janos while eating potato chips, and then beats him into amnesia, and Genos doesn't know who he is. I can only look at the manga to find a memory, and I also had a fight with Saitama Sensei, and accidentally burned saitama's house, at this time, Yuki came over to woo Saitama, because Jenos read the romance novel, and then went to pick up the snow of hell, but Yuki did not eat this set, she had another idea.
It turned out that she wanted to take advantage of Geros's amnesia to pull him into the snow blowing group, so that the snow blowing group would have a powerful combat force, but Genos had lost his memory and even forgot the way to fight. After playing against the snow blowing group for a while, he left.
At this time, a strange person appeared, it was called the Mountain King, it was to avenge the humans to drive it into the forest, everyone knew that Genos was an S-class hero, Geros could only fight him hard, but because Genos forgot the way of fighting and was beaten back, but the Mountain King's belief in revenge aroused himself to be a person with a mission of revenge, and then he resumed the way of fighting, and he cleaned it up with an incinerator. The Mountain King is a ghost.
Later, Janos went back to Saitama's house to apologize, and Saitama also forgave him, after all, he beat Jenos to amnesia. But Janos, is it really good for you to blow snow in front of Saitama-sensei?