In My Hero Academia chapter 417, Deku delves into Tomura Shigaraki's past, revealing a connection to Nana Shimura. Fan theories speculate on Deku's fate, possibly losing more than just his Quirks, including limbs. The chapter hints at Deku losing his arm to Shigaraki's Decay Quirk, based on previous artwork and interactions in the story. As Deku and Nana explore Shigaraki's memories, a deeper understanding of his past emerges, setting the stage for future interactions. The series is moving toward a conclusion, with Deku facing potential consequences and challenges ahead.

My Hero Academia chapter 417 sets up a dramatic confrontation between Deku and Shigaraki, hinting at sacrifices and losses to come.