"Blue Exorcist: Kyoto Saga" is now on its climax and the main title of the series has now finally given meaning as Rin struggles to exorcise the Impure King with his iconic blue flames. In the previous episode, Rin has finally drawn the Koma sword unleashing his full demon power. Rin was the only hope of the exorcists to put kill the massive demon and it turns out that his lack of confidence is what holding his power back.
According to Byte, Rin's character lacks luster throughout the previous episodes where he is shown as a weak and insecure brat that is afraid of his own powers. Compared to what he is in the past, he changed from the Rin that is full of self-confidence to the point of being an arrogant one. Rin has been a huge disappointment to the fans this season. However, as the end draws near, he learned to accept who he is and control is power.
The events now escalated from bad to worse in Episode 11 titled "Shine Bright as the Sun." Suguro can't keep the barrier up and the miasma spreading to the city became an imminent threat. Thanks to the heavy rain, the miasma was held back but not indefinitely. The Impure King is still present and Rin is the only one that has the power to slay the gigantic demon.
Even though his demon powers are unleashed, Rin still finds it difficult to finish the Impure King as his slashes proved to be ineffective to the demon's regenerative abilities. Good thing the fire spirit named Ucchusma decided to help Rin to control his flames and release a massive attack to burn the demon to the ground. The attack is supposed to burn anything in the material world but Rin managed to control the fire and limit the damage only to demons.
With that, the Impure King is finally gone from the face of the earth. After he sheathed his sword he turned to Shura and Suguro with a hilarious face saying that he has finally learned to control his flames. After some thanks and praises and some brother drama, "Blue Exorcist: Kyoto Saga" Episode 11 ended.