The Four Kings (四天王) are four monsters that lead a Tokyo street gang called "Monster Business" (馬獣工業), appearing exclusively in Rosario + Vampire Capu2.
- Iyo the Zashiki-warashi: A very short boy with a bowl haircut.
- Awa the Umibōzu: A humongous overwieght man
- Sanuki the Shiranui: A young man with long grey hair that conceals half of his face.
- Tosa the Tengu: a man in a tengu mask. He is the leader of the Four Kings
Rosario + Vampire Capu2Edit
They attack Tsukune and the girls on a class trip, kidnapping Tsukune in the process, but are swiftly defeated.
- Their last names are the names of what yōkai they are.