Keith thinks he's about to get rickrolled. Keith is mistaken. When he opens the email, all it says is Saw this and thought of you, happy birthday buddy, followed by a link to a video hosted on a Google drive. Keith gives it a long look, weighing suspicion against curiosity, the fact that he knows the sender of the email against the fact that he knows the sender, and then shrugs suspicion aside. He's probably about to get rickrolled, but whatever. He clicks the link. It's not a rickroll.

In which there are vampires and hunters and watchers and humans, Yamamoto Takeshi is more than a little bit crazy, and Gokudera Hayato is caught in between a whole bunch of loyalties and duties.

This is a dark Alternate History arc that follows what might happen if Mukuro had decided to make Xanxus his tool of conquest instead of Tsuna.

Matt has a plan to get Shiro laid; Shiro has a lot of misgivings about this. "Shiro. Buddy. I swear on everything I hold holy—" "You're an atheist," Shiro points out. "—I swear on the grave of Carl Sagan and in the name of Neil deGrasse Tyson," Matt says, not missing a beat, "that if you go home alone tonight, it'll be your own personal decision and not because you won't have other options."