https://youtu.be/HLk38k25EhU

We see you walking with Ruby, Weiss, Blake, Yang, Tanjiro, Zenitsu, Inosuke, Nezuko, Kanao, Genya, the Hashira, and all of the Demon Slayer Corps Members joining you. 

You then burst off running towards the shining sun as the title appears and the inside of the Infinity Castle is shown. 

We see images of the Hashira and all their pasts with Giyu reaching out to the images of his sister and his friend Sabito. 

We see Obanai with the spirit of the Snake Demon slithering around him. 

Then Shinobu cries seeing the spirit of Kanae right in front of her. 

Gyomei is seen inside of a cell with the spirits of the children he took care of surrounding him. 

Muichiro sees his family as he keeps training his sword strikes. 

Sanemi holds his head while thinking of his mother, and seeing Genya kill her before him. 

Mitsuri is seen being rejected by several suitors, before hugging you in return. 

Uzui is last seen in retirement with his wives by his side, living the good life. 

Muzan transforms with white hair and a damaged body. 

In the Infinity Castle, we see Kokushibo, Doma, and Akaza all prepared for battle as they await to fight. 

The Ubuyashiki Mansion explodes with Kagaya accepting his fate and you screaming with tears at his demise! 

In the Infinity Castle we see you clashing with Akaza with you transforming into what appears to be a stronger Super Saiyan, and unleashing several Breathing Styles onto him! 

Ruby and Zenitsu clash with a former Demon Slayer who unleashes Thunder Breathing on them, and Zenitsu screams at Ruby being injured! 

Doma stabs Shinobu angering Kanao, Weiss, and Inosuke who do battle with the sadistic and perverted demon! 

Sanemi cries at seeing the corpse of Genya with Blake, Yang, and Gyomei protecting him from Kokushibo. 

Finally, we see Muzan rising in his new form as you and Tanjiro charge right towards him! 

The last image is of a new day rising and Nezuko reaching for both you and her brother.