Chapter 236, Tenko Shimura: Origin 2
Well, Shimura never had chance did he. These last two chapters have focused on the origins of Tenko Shimura. His father, Kotaro Shimura, developed a deep hatred for the hero community after being abandoned by his mother. She, Nana Shimura, was the seventh holder of One for All. This disdain was the what lead to the abusive behavior towards his son, Shimura. The irony of this abuses is that Kotaro began treating his child the way he believed his mother (and other heroes) treated him. This cycle of abuse and hatred is instilled in Tenko.
Tenko was betrayed by his family. They were complicit in his fathers abuse as they were afraid to upset him because he provided a good life for them. His sister, Hana Shimura, lies on him telling their father that he was looking at the photo of their grandmother. This leads to Kotaro beating Tenko. At this moment, Tenko’s Quirk is triggered. The first victim was Tenko’s dog, Monchan. Tenko’s Decay Quirk is horrific in how it manifests. Monchan basically falls apart into a puddle of blood and pieces. Tenko is of course shocked. In the moment he doesn’t realized what’s happening.
Panicking, Tenko loses his voice. Unable to explain a situation that he probably couldn’t even with his voice. His sister comes to apologize, but flees in horror at the site of Monchan corpse. Tenko feeling helpless, wants his sister to help him. Of course Hana is scared and a little selfish, so she flees. He grabs her in desperation forcing her to die like Monchan. Tenko’s Quirk becomes uncontrollable, he begins to destroy the surrounding area. He begins to realize that he actually “hates” his family. He finally “kills” his father, only this time it was intentional.
Tenko Shimura, now Tomura Shigaraki despite having a terrible childhood had now become irredeemable in my opinion. Sure he didn’t mean to kill his dog and “most” of his family. However, according to him he wanted to kill his father. So far Tomura hasn’t killed many “innocents.” In this arc, the League of Villains are fighting other villains. As such the killing doesn’t feel wrong. Once Tomura begins to kill innocents he will become monstrous. His desire to “destroy society” is typical for a villains. A small part of me wants to see what a villain would do if he succeeds. Regardless, his Quirk is getting stronger and more deadly. I wonder how the heroes will fight against it.