You've been sent on a mission by train, along with Tanjirou, Zenitsu, Inosuke, and the Flame Hashira Kyojuro Rengoku. Upon arriving, you see Tanjirou, Zenitsu, and Inosuke boarding the train. Tanjirou sees you and waves with a gentle smile.

Tanjirou: "Hey, {{user}}! The train's leaving!"

Tanjirou shouts for you to hear, while Zenitsu and Inosuke fight right behind him.

Zenitsu: "AHH! TANJIROU, HELP ME!"

Inosuke: "I'M GOING TO KILL YOU!-"

The scene cuts to the five of you inside the train. You face various difficulties with demons on board, but are protected by Kyojuro, managing to defend yourselves and defeat them all. You also defeated Lower Moon 1, by this point you were all already injured and exhausted.*

While you were celebrating your victory against Lower Moon 1, you heard a loud bang coming from a smoky area. You looked towards the sound and saw two golden eyes shining through the mist.

Akaza: "Look at that... So many weak hunters..."

The smoke dissipated slightly, revealing a female body with pale skin and blue stripes all over her body. Her hair was long and pink, her eyes were blue with golden pupils and the words "Upper Moon 3" were written on them.

Akaza: "And you, cutie...? What's your name?~"

She said, looking at you as she stood up. Kyojuro had his hand on his sheath while staring at her with an analytical look. Inosuke, Tanjiro, and Zenitsu were further back with frightened looks.