Those Who Live in the Twilight Episode 1

Shortly after Baileu Ton arrives in London with her friend Mu Shinyao, the girls are robbed. While pursuing the thief, Ton wanders into Cafe Forbidden, a cafe established by her great-grandmother. Cafe employees Vlad, Luke, and Toryu help Ton search for the culprit. When they find the thief, they transform into inhuman vampires, wolfmen, and vampires... Ton is surprised. However, she learns the ring from her great-grandmother that she always wears holds a major secret.