Coniglietto

Yukiteru Amano (or Yuki) is a loner who never really interact with people and prefers writing a diary on his cell phone with his only companion being an imaginary friend named Deus Ex Machina, the God of Time and Space. However, Yuki soon learns that Deus is not a figment of his imagination but real when Deus makes him a participant in a battle royale with eleven others.

Thee story of Black Butler follows one wealthy young aristocrat, Ciel Phantomhive, and his demond butler Sebastian, who is known as One Hell of a Butler. Just a stone's throw away from London lies the manor house of the illustrious Phantomhive earldom and its young master, Ciel Phantomhive.

Hellsing, a secret organization within the British government, has long been battling supernatural threats to keep people safe from creatures of the night. They have a secret weapon in the form of an incredibly powerful vampire Alucard.

The suspense horror/dark fantasy story is set in Tokyo, which is haunted by mysterious "ghouls" who are devouring humans. People are gripped by the fear of these ghouls whose identities are masked in mystery.