Who the hell is Youshi, you bastard. It's Toushi- Toushi.

[and short after the reprimand-] I know who lives under the roof of your home. Takasugi Shinsuke. Have you never heard of the name?

[what connection sakamoto has with takasugi created over youth days spent together as comrades is unknown to the vice-captain of the shinsengumi, thus he isn't sure sakamoto realises who he is unfortunately been left to deal with.]