After Nyx went into a rampage, driven by his hatred and anger towards the three who hurt his mother. He couldn't stop himself from beating the guy all over his face, his body even if he wanted to wouldn't listen to him, almost as if he were unconscious. And so that made Leo finally step in and stop the fight, after seeing the guy almost ran out of breath. He was the one that caught the fist of Nyx aiming to end the guy's life.
“You should stop now, Nyx! That's enough” Said Leo while gripping Nyx fist.
Leo after saying it then looked at Nyx, he felt like something was not quite right about his consciousness. It seems like he was both conscious and not at the same time. But after a long pause, Nyx suddenly woke up from his anger as he saw a man in front of him, all battered up. Nyx also felt like he was unaware of what he just did, but it isn't the first time he felt this way. It was the same feeling regarding the incident that happened in his middle school years that landed him in the juvenile center.
After Nyx gained his sanity back and can now think rationally, he found a guy in which he held by his collar, being beaten close to death. The face was almost unrecognizable with blood splattered everywhere on the ground and on to the wall, and his face was full of blood and a mouth that had a lot of missing teeth. Nyx fist was also covered with a lot of blood coming from the same guy, and so he finally let go of him.
And now all the three men that were involved in the incident and also a member of The Raven gang, were all lying on the ground somewhere in the dark alley. And Nyx finally achieved the purpose of coming here, exacting his revenge. He then turned his back and walked outside leaving Leo behind him. And Leo, being alone in the alley, had his hand in the back, the one he used to stop Nyx fist, shaking uncontrollably from the impact of Nyx's last punch from which he stopped.
Leo then smiled and murmured to himself, “You are really strong just like that man. You have both the quality and charisma of being above all.” Upon saying it, Leo then looked at the three bodies lying unconsciously, he dropped a piece of paper on one of them and went on to follow Nyx.
An hour had passed, right after Leo and Nyx left. And the incidents that happened in the dark alley, unbeknownst to Nyx. One of the members of the trio, which is also a part of The Raven gang, was looking for his companion's that night. After a couple of minutes, he saw the three of them lying on the dark alley near the Club, while all beat up unconsciously on the ground. The guy then found a piece of paper that was on their bodies, his eyes widened upon seeing a crown drawn in it. 
He immediately called their boss who is also the leader of The Raven gang within the East Street. His name was Noir, a man who is the most mysterious amongst the 4 leaders of the major gangs. 
“Good evening sir, someone beat up our members.” Said the guy while being so respectful.
“You just called me for that?” He asked.
“N-no boss t-thats..” As the guy was scared to even mutter a sentence to him.
“Speak.” He said calmly.
“T-the thing is, tthere was a piece of paper on their b-bodies, with a ccr-crown drawn to it.” Said the guy, while clearly stumbling over each word.
The person that the guy was talking to immediately hung up, upon knowing the point of what he was talking about. The person who answered the call then went inside the old factory where the true leader Noir was sitting, it was such a dark and gloomy place. The guy then bowed his head to him, and said that The Crown attacked their members. Noir doesn't say anything and instead lights a cigarette while still facing his back to the person who was talking to him, he is his right hand man named Jake. And after Jake said it to Noir, he then left his room respectfully.
But what Jake didn't see in Noir's hand, was a picture of two people exiting the dark alley tonight. Noir was well aware of the fact about what happened, and then smirked upon thinking of a wild dog trying to take a bite from a large piece of meat. “So you made your move, this will be a one hell of a fight. You no longer want a bone and decided to take all the meat for yourself? What a bad dog you are.” Said Noir.
And at that moment Nyx was already in his house, and saw a cart full of junk in their front yard. So he unloaded all of it, and went inside to greet her mom. 
“I'm home, Mom.”
While his mom was preparing the table and food for them to eat.
“Where did you go off to?” Nyx's mother asked, curiously.
Nyx didn't show any unwanted movement and worries in his face, in order to not raise his mom's suspicions. He prepared an excuse in advance and cleaned himself thoroughly beforehand.
“I was just looking for a part time job in the street, mom.” Nyx answered immediately.
“Didn't I tell you, you don't need to? And just focus on your studies?”
“But mom, allow me just this once to help you”
“Enough of that, come sit here and eat. Then go up to your room to study, ok.” Nyx mom answered.
And so Nyx immediately went to eat, and after they were done. He also cleaned the table and washed the dishes as usual. But Nyx mom, knowing his son's behavior since childhood, knew that something happened, just by feeling it. She then went on to approach Nyx and said.
“You don't need to do it, son.” She said.
“About the job? I need to.” Nyx replied.
“You know it yourself what I mean right?” Nyx mom said, while going into his room to rest.
Nyx was unable to reply to his mother's remark, and was contemplating again whether to continue what he was doing or to keep his promises. Nyx doesn't want to add trouble to his mother, and thought that maybe he will just dedicate himself to his study.