Kurei is Recca's older half brother. When they were little, Kurei was
seen as one with the cursed flame. Because of that he was ordered to
be killed so that Recca would be the heir instead of Kurei. His life
was spared thanks to by Recca's mother, Kagero. Kurei and his mother
became outcasts and Kurei was bullied. Kurei decided that all of his
and his mother's suffering is because of Recca, so he tries to kill him.
The Band-Aid on Recca's cheek covers the scar left behind after Kurei stabbed
him. When Kagero used the time spell to send Recca into the future, Kurei followed.
He was adopted by Koran Mori. Kurei tried to hide his feelings for Kurenai but Mori
saw through his act and killed her by detonating a bomb that was inside her.
Kurei used his flame, the phoenix, to turn Kurenai into a living flame.
Kurenai became an angel of fire. The only reason Kurei follows Mori is
because Mori put a bomb similar to the one put inside Kurenai into Mori's wife
who Kurei cared about as if she were his real mother.
Renge is a clone created by Genjuro using the DNA of Kurei and Kurenai.
She thinks that Kurei and Recca are her brothers. She is strong and can
use fire as well. She also thinks Mori is her dad, she isn't very smart.
Koran Mori is the big bad of the series it seems. He has no feelings for anyone.
He adopted Kurei when he was four and tried to get him to throw away all emotions.
He adopted Kurenai just to kill her in front of Kurei. He wants eternal life and
sees Yanagi as the key to that power.
Rasen is a Jyushinshuu and a skilled fighter who can's speak and
shows no emotions. The only way he can talk is through Kirin and
her madogu. Rasen is stronger than Kurei and is feared by everyone
but Kirin. Rasen erased his own mother and that information angered
Kirin uses her madogu, Shingan, to read other people's thoughts
and she is in love with Rasen. Kirin is very calculating, she likes
to plan out every move and it's consequenses before attacking.
She's smart and very cheerful.