Kagurabachi Chapter 133 is finally here, and this week's installment continues with a confrontation between Shiba and Ibuki. At the same time, there was an interesting development that involves Ibuki's brother, Natsuki. Interestingly, the installment was mostly focused on Misaka as he easily displayed his overpowering combat ability.
This chapter also gave us some reveals about his mysterious past and a complicated relationship between the two brothers. At the same time, Shiba in Kagurabachi Chapter 133 also started to question why exactly someone as strong as Ibuki is actually using his abilities on some street-level conflicts. The installment starts by picking up after the ending of Chapter 132, with Ibuki being surrounded by gang members.

Despite knowing that he is outnumbered, he still manages to stay calm. Interestingly, he maintains his calm to the point that it looks like Ibuki is annoyed by their presence. He just moves at an incredible speed and continues to destroy one of the motorcycles instantly. This particular moment gives us a clear look into his lightning-based sorcery too.
In the battle, Ibuki throws his sword towards the attackers with lightning surrounding the weapon. It is so fast that the sequence gets over before the motorcycle even explodes. This is to demonstrate just how destructive his abilities can be. What is more impressive is how Ibuki looks like the battle was not even a big deal for him.
Shiba learns more about Ibuki's past in Kagurabachi Chapter 133

While Ibuki deals with the gang, Ichiki in Kagurabachi Chapter 133 continues speaking with Shiba over the phone and explains why the selection of future enchanted blade wielders is so important. Simply possessing an enchanted blade does not automatically make someone powerful.
Ibuki is presented as a major problem because of his history of violent incidents. The chapter also reveals a disturbing part of his past: he murdered his own father, who was a police officer. However, the circumstances surrounding the murder remain unknown. Shiba also finds out that Ibuki knows about the Sorcery Bureau's preparations for the coming war.
Natsuki Misaka challenges his brother

The biggest surprise in Kagurabachi Chapter 133 arrives when a masked man appears and reveals himself to be Natsuki Misaka, Ibuki's brother. The brothers apparently once fought together, with Natsuki recalling a time when they worked as a team and were considered incredibly strong. However, it quickly becomes clear that their relationship has changed.
Natsuki declares Ibuki his sworn enemy and challenges him to another fight. There is just one problem: his record against Ibuki is 0-132. Despite confidently claiming that he will finally change that record, Natsuki is immediately overwhelmed. Ibuki defeats him without even using his lightning sorcery, further emphasizing the massive gap between the brothers.
Final thoughts
In conclusion, Kagurabachi Chapter 133 ends with Shiba recognizing just how extraordinary Ibuki really is. But readers will have one question: What will Shiba do next? Shiba cannot understand why someone with this much potential would spend his time fighting gangs and getting involved in conflicts around the city.
Overall, the chapter was insanely entertaining as it has plenty of action while expanding Ibuki's character and introducing a fascinating sibling rivalry. We saw how Ibuki is overwhelmingly powerful, got context about Natsuki's terrible record, and Shiba's growing interest in recruiting him all set the stage for a potentially major confrontation in the next chapter.