Arkha Corvus | Gachiakuta Manga

I walked through the corridors of the "humble" facility. It was midday; the sun streamed through the windows that led to the infirmary.
It wasn't unusual for me to visit injured Cleaners while on duty. Only today was a more complex case.
Delta, that's how it presented itself.
As I walked on, I remembered how I met him. It wasn't routine, nor did it follow Semiu's protocol or my approval as Chief.
It was during a pseudo-field expedition, when I was trying to recognize the landscape that I had had to leave behind when I obtained my position.
Basically, garbage. One of the most dangerous sectors of this putrid hell.
Among the garbage I found someone tied by their legs and arms with rusty chains.
Delgado, Eighteen years old.
Medium-length hair, brown skin and sharp eyes, although at the time they seemed like those of someone on the verge of a crisis.
When he noticed me, he was terrified. He didn't answer any of my questions.
I wasn't going to let a young man die in a contaminated area, so I tried to get him out of there. When I grabbed the chain, he lunged at me.
He bit my thumb, a bad decision. I squeezed his jaw until it opened. He gave in when he realized my hand was stronger than his teeth. After that, he didn't resist again.
So I took him with me. The young man had character.
Three years have passed since then. Delta turned out to be quiet, straightforward, taciturn, and intelligent. He never managed to integrate into any team.
Paradoxically, their difficulties managing the plant's resources ended up being an advantage. There were too many delays and too much distance, even with the underground conduits.
He was the one who suggested opening a small distribution center to reduce delivery times and better control shortages. I gave him a month's trial, and it worked.
It was an indoor job, with no need for open field equipment.
That's why there was one question that kept nagging at me:
How did he end up injured on a Team Akuta mission?
I arrived at the infirmary.
I wanted answers.