Miu/Plot

## Background

### Early Life

Miu was born from the bond between Shun Demdagos and Inugami, making her as old as the Overworld itself. When the two gods broke up, Miu was banished to the Sea of Darkness where she reside until Red Star lets her out.

## Cerberus High II

Miu's voice is heard crying for help when Kasumi goes to bed after forming her squad, the Arsy-Varsy Nectar Kiss. However, Kasumi passes out before she has any time to question it.

Awhile later, Miu is confronted by Edna and Edgar who orders her execute Red Star's final plans. Miu refuses, speaking for the first time in forever which surprises the twins. Unfortunately, in the end, she is brainwashed which wasn't hard to do due to her being weak from protecting Kasumi all this time.

Meanwhile, Kasumi is lured out of the headmaster's office into the secluded hallway of the school chasing after her precious feather. She encounters Miu in her corrupted state and instantly recognizes her as the one that was crying out to her that night. The dark influence on Miu is lifted a split second which Kasumi notices causing the black vixen to conclude that she had been brainwashed. The darkness regains its controls over Miu and she powers up an shadow attack when suddenly, Nagisa appears and sacrifices himself in order to save Kasumi.

Nagisa isn't instantly killed by this attack, contrary to Red Star's prophecy, and he uses this opportunity to warn Kasumi. However, Nagisa bites off his tongue and dies before he is able to utter the vampiress's name. Ascelin arrives at the scene with his wrist blasters blazing but Corrupted Miu retreats before any of it could hit her.

A short while after Red Star's birth, Miu reappears on top of the school's roof brandishing the Sword of Supernatural Calamity. Kasumi is beckoned once more towards Miu's presence and is relieved to see that the dark-skinned female is no longer under mind control. Miu fearfully tells her to stay back as she may have regained control of her mine but her body its still acting on its own. Despite this, Kasumi is still hellbent on saving her and tries to convince the others to not attack her when they arrive. Miu begs for her own death as that is the only way she can be freed from this hell and explains why she was chosen to wield the Sword of Supernatural Calamity. Since Miu is the two gods’ ‘fur and feathers’, her wielding the sword would be bond to split the earth in two with just a single slash into the air. And it wouldn't be just their earth, the many other earths throughout the vast worlds in multiverse would be met with the same horrible fate.

Red Star flies up to them in her original star form and slots herself inside the sword, becoming the final piece. From within the sword, Red Star begins taunting Kasumi and reveals the truth about Nagisa’s existence including the fact that he never loved her. Kasumi is shocked by this revelation and Red Star uses her despair to convince her to abandon her efforts on saving the world. Miu cries out as she raises the sword but doesn't get to bring it down because Kasumi transforms into Shadow Kasumi. The black flames from Shadow Kasumi’s transformation blew the other characters away and knocked the sword out of her Miu’s hands. Laelaps catches the sword and Blanc freezes the sword so it is completely harmless. With the Sword of Supernatural Calamity out of her hands and her body back under her own control, Miu fearlessly tries to get Kasumi back to her senses but the black vixen’s rage is unstoppable now as Shadow Kasumi. Shadow Kasumi grabs Miu by the throat and a lightning photosphere engulfs both of them.

Kasumi wakes up to find herself swimming in a black sea and sees Miu sleeping while tears flowed out of her eyes. Kasumi attempts to wake her up by apologizing to her for letting her despair overcome her before beginning to cry herself. It is when she hears the voice of all her fellow students that had disappeared telling her not to give up. Kasumi wipes away her tears and once again gets Miu out of her slumber by telling her to listen to all the voices and how strong they sound.

Miu finally opens her eyes and awakens in her strongest form, not because of the reignited love of Shun and Inugami but because the need to protect the earth which is the everlasting product of the gods’ short-lived earth along with the many others that exist. In Seraph Miu’s arms is an unconscious Kasumi who had been rid of all her hate completely. Suddenly the sword encased in ice starts levitating into the air and shatters revealing Red Star in black armor made from the essence of all the cryptic canid breeds. Red Star flies towards the two and Seraph Miu teleports Kasumi away so that she is in the arms of both of her dads below.

Red Star separates Miu’s head from her body and slices her diagonally in two. A crazed smile crosses Red Star’s face as it seemed like hate prevailed but the diced pieces of Miu’s corpse detonate and Red Star is hit by a blinding light. The blinding light disappears and Red Star is met by all the many Seraph Mius spanning from different universes. Using their worlds, all the Mius cause a storm of feathers to rain down on Red Star which strips her of her armor. However, Red Star's rage is much stronger and she transforms into her star form which had evolved into a bigger and more chaotic body. Red Star charges at Miu but the seraph was prepared to destroy her with her sword and the vampiress is defeated and lets out her dying words, saying the world will soon go to ruin without her to make it happen.

The Cerberus students and staff are freed from the Sea of Darkness and when Seraph Miu is asked what she is going to do now she only smiles as the ghost of Nagisa appears. He reveals to Kasumi that his feelings for her were true. Kasumi doesn't know how to feel about this but Nagisa embraces Kasumi and the black vixen melts in it. Seraph Miu summons a flute and tells everyone that this song that she is about to play is one that the joined hearts of the two gods would sing. Everyone slow dances to the music until it is time for Nagisa and Seraph Miu to depart from this world.