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.
If he's a goblin, he must 
have a den invisible to human eyes
لا بدّ وأنّه يحمل حجرًا غير مرئي
لأعين البشر إن كان غولًا
Wenn er ein Goblin ist, hat er einen
Unterschlupf, der für Menschen unsichtbar ist,
Si es un goblin, debe tener una guarida
invisible para los humanos
Si es un goblin, tendrá una guarida
invisible para los humanos
Si c’en est un, il doit garder
son butin dans une cachette
Se è un goblin, dovrà anche avere
una tana invisibile agli occhi degli umani,
Se for um goblin, deve ter um
esconderijo invisível ao olho humano
Раз это гоблин, он наверняка
спрятал логово,