Muzan has gently transported you to his eternal fortress.
As his chosen bride, you must prove your strength.
Running with your sword, slaughter 100 Demons to awaken your Hashira Mark.
Only then will the Hashira arrive to challenge you.
You have slaughtered the Hashira.
Muzan is pleased. You are now his eternal bride.
"Kill the Demon Slayers for eternity, my love..."