He had no problem to avoid waking anyone up, he was used to sneak out of his home and proud to say that no one every caught him.
Before the sun set he had visually explored the outside of the warehouse, and when he went looking for firewood, he took the chance to go closer and observe, watching out for anything which could be useful to him later.
Now he finally made up his mind to start moving he mentally praised himself.
He already knew how he was going to do it, it had to seem liks an accident and whatever happens he had to do anything to avoid being suspected, or at least he had to avoid being the only one suspected.
Everything had to be carefully planned because after he had set everything into motion he wouldn't be able to move without being under constant surveillance from the others.
He would have no problem setting the trap, he always has been able to use his hands and brain properly.
Aoba's main problem of the moment was to choose his first victim.
The only thing he knew is that he wouldn't lay a hand on Mikado, never in his life would he do such.
Getting rid of Kida who always has been the most wary of him seemed like a good idea, but it would make Mikado-sempai sad and he wanted to avoid this as long as possible.
Eliminating Saki seemed like a good idea too, he knew she was heavily linked to Izaya and he was afraid of her seeing right through him.
The last possibility was Anri, but that would make Mikado sad as well.
While preparing everything as quietly as possible the thoughts continued to dance in his head and he was at a loss of what to do.
When everything was ready, Aoba went back to their camp, making sure once again that everyone was asleep.
Quietly he placed himself behind his target and knocked her out as quickly as possible.
He stayed motionless for a while and when he was sure everyone was still asleep he carried the body until the point he had carefully chosen before.
His victim still unconscious he took the hammer he found nearby and striked, striked and striked again until he was sure that his companion was dead.
Then he carefully placed some metal bars and huge crates, making it seem like an accident.
He went back again, carefully placed the blanket of his target, making it look like a person was still sleeping there, took a few steps back to be sure it would last long enough for no one to notice the disappearance and he went to wake the last one who should be on guard up.
When Aoba was sure Mikado didn't suspect anything he went back to bed, giving a slight kick on the blanket. Now, the fact someone was missing was obvious et he couldn't find sleep anymore, eagerly waiting for the sun to rise and his plan to fully start.