WARNING: MANGA SPOILERS
Okay, chapter 417 just got sad, and Shimura finally come face to face with her biggest regret. Let's dive in!
It seems he get to interact with the villains Shiggy faced like Stain, Re-Destro and Overhaul.
Shimura noticed the photo and realized he kept it because he still wounded from Shimura separating him and placed it on Shigaraki. Which is why she failed.
So Nana running to Kotaro means that we officially have destroy the core inside Shigaraki.
So now it looks like Deku can finally reached to Tenko and save him in order to "destroy" Shigaraki.
So what do I have to say about this chapter? This chapter was so heart wrenching, because of Nana separating Kotara causing him to hate heroes, but now she can finally atone for what she did. And now Deku can finally save Tenko and "destroy" Shigaraki. But I'll guess we'll have to see in the next chapter. Either way, this was a great chapter! I give this a 9/10.
Oh, and there's a break next week. See you week after next!