Chapter 13

You are... (おが) is the thirteenth chapter of Koyoharu Gotōge's Kimetsu no Yaiba.

Summary
The chapter begins with the Swamp Demon having a flashback regarding an encounter with Muzan, the memory occurs at the instant when the Swamp Demon transformed from his human form and is seen being held up in the air by the neck. Muzan apparently warns the demon to never speak or disclose any information regarding him, insinuating that he would always be watching.

The flashback ends and the chapter resumes with the Swamp Demon trembling in fear at Tanjirou's request for more information regarding Muzan. The Swamp Demon persistently refuses and attempts to regenerate in order to attack Tanjirou but is quickly killed before he gets the chance to do so.

Tanjirou returns to a sleeping Nezuko and apologizes to her once again for failing to gather intel on how to revert her back to her human form. He sees Kazumi on the floor with a distraught look on his face and checks to see if he's alright. Kazumi rhetorically asks him if he looks alright after having lost the love of his life, to which Tanjirou advices him to keep living no matter how many times he might lose something precious to him. Angered by his benevolent demeanor, Kazumi belittles Tanjirou asking what he would know about losing something precious since he was just a kid.

Tanjirou gives him a kind hearted smile and gives Kazumi the hair bow which belonged to Satoko, to give him something to remember her by. Realizing his insensitive mistake, Kazumi apologizes to Tanjirou as he leaves the village. As he makes his exit from the village, Tanjirou's crow lands on his shoulder and immediately informs him to investigate a rumor regarding a hidden demon in Asakusa, Tokyo.

Two days after leaving the village, Tanjirou and Nezuko arrive in bustling city of Asakusa. Being raised in the mountains the majority of their life, they are immediately overwhelmed by the enormous crowds, large buildings, and stunning lights. They take a break from the crowds and arrive at a noodle cart where Nezuko sleeps while Tanjirou grabs a bite to eat. However as he awaits for his meal, he is caught off guard by an unexpected familiar scent nearby.

He takes off following the trail and discovers Muzan hidden within the crowds of people. He reaches for his katana and is about to engage Muzan before he realizes that he is carrying a young child in his arms.

Characters in Order of Appearance

 * Swamp Demon
 * Kibutsuji Muzan
 * Kamado Tanjirou
 * Kamado Nezuko
 * Kazumi
 * Muzan's Daughter
 * Rei