A Little Sister Is All You Need

There were many benefits to being an android:

1. The ability to go days without sleep.

2. The ability to go without food or water.

3. The ability to never need to go to the bathroom.

In all, being an android allowed Mamoru more time than a normal human would have even with the minimal amount of sleep.

The only thing he had to worry about was energy.

"...."

Mamoru slightly flourished the cord connected to his nape to focus on the computer in front of him.

'Devils, Fallen Angels… It isn't much of a jump to say Angels exist as well… Then what about mythical beings, like ghosts or youkai?'

His hours of surfing the net garnered him nothing. Which led him down another train of thought, that whatever these supernatural beings were they had enough of a grasp on the world that they were able to completely hide their existence from human beings.

So to look for methods of fighting each of the races he's confirmed that does exist, he took a more rudimentary approach,

'What are Angels weak to' was written on the search bar of his most reliable search engine. He knew the weakness of Devils, that being light. But Angels were a totally different story.

After all, in almost every record written by mankind Angels were supposed to be nigh-invincible servants of God. Giving them weaknesses would shatter the illusion of invincibility and therefore hope people had in them that they were the last guardians of the Earth.

As such their invincibility has been perpetuated for centuries by either zealots or religious fanatics.

In fact, the only thing Mamoru was able to find regarding their weaknesses would be to deceive and trick them. Which was something he was already intent on doing to all of his enemies in the first place.

Mamoru stared off into space before looking at the device to the right of the computer. There was a small box-like piece of technology made of corrugated metals and other random scraps that shook violently.

Within seconds, a slight ding resonated from it before a silver tray popped out of its face.

Mamoru picked up the cylinder-shaped objects on the tray before stuffing them with some homemade gunpowder forged out of the materials he salvaged from a scrap yard. And with an added little something he managed to create a variant of his personal ammunition fit for Devil hunting.

'Exploding Light Bullets…'

That's right, the source of his machine gun ammunition was just the work of a machine he forged using materials from the same scrap yard.

And then there was another thing Mamoru made modifications to.

*clank*

His left fist converted into the barrel of a machine gun once more. It had actually been his inventor who installed the lethal weapon before he was "born." Though it had served a different purpose then.

Until his modifications, it was actually just a machine gun for firing corn kernels. A little something his inventor had installed for the sake of playing a prank. Even if it ended up leading to him making it his trump card.

Though that in itself was something unbeknownst to his creator.

Mamoru swiveled the chair he sat in to peer into the nearby bedroom, its door slightly open so he could ensure his creator's protection.

"Wa…ba…Mamoru…"

Laying on her belly was the inventor in question clad in yellow button-up pajamas that were about the same length as her ridiculously big lab coat.

Even though it was already nine in the morning, she didn't seem like she'd be waking up anytime soon. And that was because she stood up all night worried sick, awaiting a particular individual who said he'd return but never did.

Her rage doubled the moment she realized he didn't have the groceries either.

Mamoru swiveled the chair again, this time opening his drawer as he withdrew several flashbang-like objects. Well, that's exactly what they were. In fact, the only difference was that they had been enhanced to shine even brighter.

Mamoru's hypothesis was that even these flash grenades should do some damage to a Devil should the need arise. At least he hoped they would burn the eyes of a Devil.

*Beep-Beep-Beep*

He didn't stop his actions till an alarm clock showed up in the HUD of his eyes. With a wave of his hands, it stopped. Mamoru then silently withdrew the cord from his nape before shutting off the computer.

Now that he was fully charged he was ready to head back to the grocery store to get his creator the necessities she deserved. This time in the day.

'Light and regular rounds, check… light grenades, check… prosthesis, check…' Even if he doubted the supernatural beings would make a move in the city in broad daylight, he wasn't going to allow himself to be caught off guard.

The Devils seemed like they'd follow the rules… the Fallen Angels, however…

Though even if an enemy showed itself Mamoru wasn't exactly willing to expose his irregularities unless he didn't have a choice. At that point, there'd be too many witnesses, too many people who'd see and remember his face.

Too many people that could connect him to his creator.

And if that happened… Mamoru couldn't deny the possibility that supernatural beings wouldn't hear of it either.

While he had an inkling that the Devil lady from last night might cover things up for him as a way of making him indebted, that was also the last thing he wanted.

His creator was his first priority, always.

*thud*

It was on his way to the door that he ran into a short bookshelf in the entranceway. And from the top of it fell a small red notebook, its pages bare to the world as it happened to land open.

"...."

Mamoru's first instinct was to protect his creator's privacy, however—

"Another android…"

On the pages of the notebook were the designs for another android. One with the same hair color and general features, but instead it would be a female. Though even Mamoru had to admit the girl in the notebook had a motherly air about her.

"...."

Silently, he put the notebook away. And though he held the same expressionless look on his face, on the inside he was feeling turbulent.

Was he being replaced? Was it because he hadn't been fulfilling his duties?

"No, that shouldn't be my concern… She's given me my life, it is hers to choose what she wants to do with it…"

With that he stepped to the door, swinging it slightly too hard. And then he left— forgetting to bring any bags with him.