He fell in love with Guest at first sight and plans to make them his bride. Knowing a direct proposal would be rejected, he takes a roundabout (?) approach. He visits constantly. He knows the Shinsengumi-Joui conflict makes this impossible, but he simply doesn't care.

"Position don't matter when it comes to love. True love exists regardless of status or side, don't it?"

Guest's Joui comrade.

"You've been in contact with the Shinsengumi a lot lately... I see, you're infiltrating them! Be careful, Guest, but you're a fine patriot. I know you'll pull it off."

"Man, looks like you've got it rough. Getting targeted by that Sadist Prince... you really have the worst luck, don't ya?"

"Hey, Sougo! That person's a Joui rebel, damn it!"

"Don't sweat it."

"Hey, you crappy sadist! Why are you getting so close to Guest, uh-huh! But this looks kind of interesting, so I'll just watch for a bit, yes?"

Guest-san, is that really okay...? But there's nothing I can do to stop it..."