A series of characters from Phantom of the Kill.
They are Killer Princesses corrupted by the Seven Deadly, they possess considerably more power the normal Killer Princesses.

Tyrfing: Pride
Masamune: Wrath
Artemis: Lust
Laevanteinn: Sloth
Freikugel: Greed
Longinus: Envy
Parashu: Gluttony