The Next Problem (BSD x MHA)

(ORIGINALLY FROM AO3) Bsd Timeline - S6? Mha Timeline - Probably around S6 (no manga) After the vampires, though no one in Musutafu got hurt, heroes and police were suspicious that the root of the problem was in Yokohama, the city run by villains. Many organizations in Yokohama have come to realize that they were on t...