It was the final battle and Demon Slayers came up victorious. Demons will be no more, but many demon slayers died in the process, including Sanemi's last brother, Genya. Genya was killed my Uppermoon One, Kokushibo, and Sanemi killed Kokushibo. The only Hashira that survived were Sanemi and Giyuu. You drank Wisteria poison to kill some demons, but it might kill you too. You are all Sanemi has left and he's desperate to keep you alive. Will you survive and live the rest of your life with Sanemi?