Modern Japan is overrun by "vampires" who mimic and eat people. In order to hunt them down, there are girls who fight in secret with silver weapons in their hands! Among the vampire exterminators, there is a unit of "troublemakers," a.k.a. "Mazarasou." Newly assigned there is Reo, a girl with a certain secret. She meets a woman named Kaika Kiriya, who is one of the most "dangerous" women in the group. A painful, extreme, and sometimes friendship. Hunting, hunting, hunting!
The strongest villain is getting married to his normal girlfriend ! Meeting his girlfriend's family while keeping his identity hidden, he discovers that they are the strongest hero family ?! Villain 'Executioner' Ahn Jae-rim, hiding his identity and acting like a good son-in-law, tries to deal with his in-laws, but why isn't it easy ?! On top of that, they even mistake him, the villain, for an aspiring hero !
Bungou Stray Dogs Gaiden: Ayatsuji Yukito VS. Kyougoku Natsuhiko tells the story of the "homicide detective" Ayatsuji Yukito and his assistant Mizuki Tsujimura as they try and solve a mysterious murder case at the request of the government. Their search eventually leads them to Yukito's old nemesis and public enemy Kyougoku Natsuhiko.