Reborn in bleach as a hollow with a system

Hisashi was fighting some kind of bird-like Hollow. He was chasing it in the sky when suddenly he heard an alert he hadn't heard in years. By now with the growing strength of Reina and Masaki's help most situations they could solve themselves so the system didn't bother to send him missions. Great for his peace of mind, not so great for his list of available skills.

[Emergency Mission: Save Masaki and protect Naruki City]

'What?! How are those even related? What the hell are the two of them doing?' he questions to himself.

He stabs the bird Hollow with both blades before separating them bisecting the hollow to quickly end and devour it before paying closer attention to Masaki's spiritual signature and finds it fluctuating wildly swinging between regular human levels and even peak hollow levels. It also seems to have a familiar quality to it that he can't quite put his finger on.

'What the hell is going on with her? Are they in danger?' he worries.

He rushes to find her with Reina during one of their training sessions, but her eyes are turning black. Meanwhile a strange bone like material with a blue vein pattern looks like it is trying to eat here.

Masaki lets out a scream that seems to be somewhere between a human scream and a high pitch Hollow roar. She looks in pain and like she is losing control.

'Shit! Isn't this a lot like Ichigo losing control of his hollow self during becoming a Visored?!' he yells internally. He glances over at Reina who is trembling in fear, but also seems to be worried for Masaki.

"What's happening with her?" she asks.

"There's no time to explain!" Hisashi yells at her.

His wings unfurl and he dashes at her with high speed biting down on her and flying them as far from civilisation as possible before dropping her to the ground in the middle of nowhere. If he had left her in Naruki City there is no saying how much damage she could do with the amount of spirit power she is releasing at from one moment to the next.

Reina blinked in confusion as both of them disappeared faster than she was able to see leaving her all alone and worried.

Masaki was trashing wildly on the ground roaring out over and over as more and more of her is consumed by the weird bone growth. Her incisors started growing giving her a more feral appearance only complimented by the monstrous roars coming out of the mouth. They don't sound like something that should able to come from a human.

She finally seems to calm down a little getting up on her feet before she suddenly raises her head looking up at him, her eyes have turned completely black with a glowing orange iris that seems to lack any of the kindness Masaki's eyes are usually filled with. The bone like growth with the blue veins has formed a kind of bone-like armour all over her body except her face.

She points at him which confuses him. Upon close inspection on the bone bracer there seem to be some kind of protruding ports on top of and below her wrist. Then he feels the spirit particles gathering and a stream of black and purple spirit power bursts from both ports forming a sinister looking version of her [Heilig Bogen](Holy Bow in german) just in front of the bow and her pointing finger a similarly coloured sphere of spirit power gathers with a dark and menacing spirit pressure exuding from it.

'Is that a fucking Cero?' he worries as it looks an awful lot like a Cero just smaller thankfully. She draws the energy bow causing the spirit power sphere to stretch into an arrow that she fires as soon as it forms.

Hisashi manages to dodge it due to the distance. It was scarily accurate and fast for such a powerful move. Even more so considering what her power level had been before the transformation. Back then there was not even a chance of her being a danger to him before, she wouldn't even be able to scratch him. So far it seemed like she still wasn't a huge threat to him now however if she did manage to hit him just right with this move it could get dangerous. That arrow was no joke.

'The only thing I can do is restrict her to this area in order to keep the damage minimal and hope given enough time and a beating she manages to regain control. Or if all else fails and she doesn't regain control put her out of her misery.' he decides.

Suddenly she disappears from her spot and appears just in front of him using some form of [Hirenkyaku] with another shot charged looking to blast him at close range. He is ready though and manages to slam her back down into the ground using the flat of his blade before landing near her.

"Masaki! It's me Hisashi! You have to defeat it and regain control!" he yells at her.

Rather than getting any kind of response though now she is moving around in the air leaving behind afterimages as she rains arrows down on him from above in all directions. He makes the most of his dexterity and manages to dodge each of the arrows by a hairs breadth like dancing in a rain of arrows.

Before she manages to unleash another move he flashes behind her and uses the flat of his blade again to knock her down in hopes of slapping some sense back into her. She crashes through a bunch of trees leaving a path through the forest.

"Masaki, think of your family! If you don't control it they will lose their mom! You will never get to see them again!" he yells.

This time seems to be slightly more successful as even after getting up she stumbles for a bit and grabs her head. It doesn't last long though as she shakes her head and unleashes another roar.