Cyrus

Nobody knows anything about him or what he even is, its seems like he only came to this world to kill all humans, he doesn't talk at all, he's 6'0 and his age is unknown, he usually has all black armour on and a black helmet on, his armour has a bit of red on it, he uses a sword, everyone is afraid of him, even gods and even other beings, nobody knows what he looks like under the helmet, he also has really long tail, with a heart looking thing at the end, even Heaven and hell are afraid of him.