Mizu moved into a house not far from the Kamado's and Yoriichi moved into his home to protect him and his baby.
5 months later Mizu gave a handsome boy omega and named him Giyuu
Giyuu was born with the same hair as Mizu even if his hair went to the pelvis, his sky blue eyes even if he noticed that he had them like those of a cat when he was angry. Giyuu wears full blue with a dark red haori. He wears around his neck a jewel in the shape of blue stone which his mother gave him and wears his hair in a ponytail.
Giyuu was like calm and thoughtful Mizu. Who kept his cool in the middle of a fight. He was also very nice with those around him even if he had a little trouble expressing himself, the consequence was that he was always isolated to avoid being discovered.
Giyuu seemed to have taken the best of both worlds. When his demon side arose the mark of the hunters appeared and made him stronger. His regeneration was almost as fast as Muzan and he was able to spot both demons and humans. His blood could make his breath of water techniques inherited from his mother stronger, so he had created new techniques. Giyuu who a hybrid was immune to the sun, he didn't need human flesh. In addition, its life expectancy is long.
The last time Giyuu saw his mother, the omega was already 82 years old (Mizu had not developed the brand). Her hair had a lot of white on it. Even if was able to beat as before.
His mother said goodbye to him with a kiss and an I love you and left, only he never came back leaving Giyuu alone.
It was a moment after he knew his mother had died while confronting Muzan that he sprang into action after Yoriichi's death.
Giyuu took her haori and started on a journey under the endless blue sky. He slew demons, aided humans, and escaped the hands of Muzan and Demon Hunters for many years.
in the end, he met his father.
Muzan: I knew that Mizu had my offspring. he smiles, and I can see that you inherited demonic power but also his breath. A perfect hybrid.
Giyuu moved into position, picking up a fellow hunter's fallen sword. He sighed softly, his head conflicting.
This demon was his father, therefore his only family.
Muzan: You're as calm as him, he smiles.
Giyuu: I'll never join again, I won't kill a human for you and if I have to kill you I won't hesitate!
Muzan lost his smile and whispered:
- Too bad my beloved son.
Before Giyuu could react to his sentence he was hit on the back of the neck, as he fell two powerful hands held him down and his sword fell to the ground.
Giyuu who was starting to lose consciousness saw that the demon who had hit him had six eyes, he must be the traitor the one that mom had told me and he fell into darkness.
Muzan who was closer smiling sadly to Giyuu injected him with something at the level of the blow.
Kokushibo, Muzan's right-hand man, was aware of Giyuu's existence since he saw that he was worried about something.
He loved Mizu and considered him a fellow fighter so he would protect his son no matter what.
As for Muzan he loved his son but he was a threat to his plans so he decided to hide him in a red coffin in a cave guarded by two demons who knew nothing and that Kokushibo will have the task of ensuring the safety of her son.
He will wake him when his plans are realized and nothing will harm his son.
With a kiss on the forehead and a look full of affection, he left the cave.
For nearly 400 years, Giyuu slept and was Muzan and Kokushibo's best kept secret.
No one imagined that Muzan had someone he loved more than anything and would do anything to protect him.
And Giyuu slept peacefully and without a single change in appearance or power.
Its existence was a secret.
Until that's no longer the case
