Lucifer
Lucifer is the king of the demon world. He loves to annoy and test Vivi all the time. He is related to Vivi but it is currently unknown to which status they are related. He's much older than Vivi and the others and he changes his appearance often. His greeting for Vivi is usually to stab him with a sword. He has two black stars under his left eye. Vivi calls him "Old Geezer". Source: http://en.wikipedia.org/wiki/User:Samantha_Lim88/Hana_to_Akuma