Commissioner Katakuriko Matsudaira stands atop the Edo police organization.  Known as the Destroyer, Matsudaira is the most feared foe of Katsura's Joi patriots.  Katsura disguises himself as Ezurako the maid to infiltrate Matsudaira's home in search of a scandal.  Instead, he finds a father who doesn't belong in his own home.
In other words, I need to end 
their lives before they end mine.
En otras palabras, debo acabar con sus vidas antes que ellos acaben con la mía.
Ou seja, preciso acabar com a vida 
deles antes que eles acabem com a minha.