"Why do people kill? It's such a cruel act that many people don't understand.
There are many reasons to answer this question...
There are sick killers who kill for amusement, then there are greedy killers who kill for their own personal gain. There are killers of justice who kill because of what they think is right, and there are innocent killers, who kill as an act of self defense."
Teacher: Here are your tests...
The students leave the classroom except from two. One of them goes to talk to the teacher.
Teacher: Nao, you got a perfect score like always... I mean, what did I expect from you.
Nao: Thanks teacher.
Teacher: Well you are doing great as always. Keep it up!
Nao: Alright bye!
Teacher: Bye!
The teacher spots a student staying on the corner of the classroom. His desk is all messy and he looks like he's thinking about something.
Teacher: Ryou. Class is over... Get up.
Ryou: Right. Sorry.
Teacher: You got the worst grade in the class. Aren't you ashamed?
Ryou: Yeah yeah...
Ryou leaves the classroom. He looks tired.
Nao starts heading home. He is very happy with his result on the test, but he knew it would be a perfect score. He is the perfect student after all.
At home, he says hi to his parents, who are proud of him for getting the good grade and he goes to his room.
Nao: Well, now its a weekend, so I can finally enjoy watching some tv.
Nao turns on his tv and turns it to his favorite show and starts watching, when suddenly it gets interrupted by the news. Three criminals were found to have sexually harassed a woman. Nao is disgusted by it.
Nao: Wow... These people make me sick. How could you do this type of thing to a woman?! Its truly disgusting... These people don't deserve life, we would be much better off without them. Well, there's nothing I can do about it anyway...
As he listens to the news he hears a familiar name…
"The woman who has been harassed has been identified to be Mio"
Nao: That's my sister! How… could they… These people don't just deserve jail… They deserve DEATH.
The more Nao listens to the news the more he becomes disgusted by it. He hears about the stuff that the criminals did to his sister.
Nao: Ten years of prison… Only ten years… The police is worthless here. Justice my ass! There has to be someone that will do something. Could it be- no… I couldn't do something like that… I can't kill someone! But… if I don't do it… who will?
Back to Ryou, after class, he walks around the street, and goes inside an alleyway where he finds and sits there.
Ryou: Ugh… another day of just sitting here. Well, at least its better than going home to my dad. I still have to so I can get food. Why did my mom have to leave us? That money-hungry bitch! She took everything from us and now im stuck here with an alchoholic dad. Im broke! Whatever…
Ryou overhears some people making some sort of deal. One of them says something about an enemy who needs to be taken care of. Ryou thinks about it. It doesn't seem like too much of a stretch for him.
Ryou: Do I have anything to lose anyway? Worst case scenario, I die, which I wouldn't be against anyway. You could make the argument that it's wrong but… who cares? People die all the time, besides, it's a lot of money. I could become very rich… A few people dying wouldn't be that much of a problem. I have made my decision…