During a silent night when the moon shines, Kagaya finally meets Muzan Kibutsuji, who appears at the Ubuyashiki Mansion. Kagaya is staying alive day-by-day through his steadfast desire to defeat Muzan, while Muzan dreams of eternity. What will these two, bound by a continuous thousand-year fate, talk about?
If I'd known that would happen...
...لو عرفتُ أنّ ذلك سيحدث
Hätte ich das alles vorher gewusst,
Si hubiera sabido que pasaría eso,
Si hubiera sabido que podía ocurrir eso,
Si j’avais su les conséquences,
Se avessi saputo 
cosa mi sarebbe successo,
Se eu soubesse que isso aconteceria...
Знай я, чем это обернётся,
ถ้าเกิดรู้ว่าจะต้องเป็นแบบนี้...