God succession system

A woman walked up the stairs of their house to her sons door. She opened it and looked at the bundle of blankets on the bed, and said to him,

"Get up Alex, you don't want to miss you own birthday do you?" At her words, the boy sat up quickly and looked excited.

"That's right I'm five today!" The woman laughed, and said,

"That's right, so get ready quickly and come down for breakfast sweetie." The woman closed the door to her sons room, and walked back downstairs. The boy, Alex was excited for his birthday, but not for the reason the woman thought. He quickly leapt out of bed. Anyone looking at this boy would notice three distinct things that were different about him compared to other boys.

The first and most obvious was the tail that extended from his backside. It was about three feet long, and when he finished getting ready he curled it around his waist like a belt. Then there was his black hair. It stood up in crazy spikes all over his head marking him among the daycare teachers as some kind of young delinquent. But no matter who attacked his head with a comb or brush, it never went down.

Finally there was the fact that as far as five years olds were concerned, he was completely ripped. There wasn't a single ounce of fat on the boy's body. As soon as he was able to, he had started doing minor workouts, and even got some of the other kids at daycare and parks to help him in the name of "playing". He was also notorious for getting into fights with the elementary and middle school students that came to bully the daycare kids. Even when they beat him up, he would turn around and return the beating the next day. He had already earned the nickname among the older kids of the 'revenge demon'.

Part of the reason he was so violent was the bloodline that Alex chose. He went with the Saiyan bloodline, because genetically they were the perfect warriors. Every time Alex suffered a defeat, as long as he didn't die he would become even stronger for it. They were able to grasp fighting styles with ease, and perhaps the biggest factor, there was no real limit to their fighting potential. There was also the benefit of using energy attacks, and the super Saiyan form, but that would be a lot further into he future. The downside was that saiyans were extremely violent. He had been able to suppress the violent nature to an extent, but when he got into fights it would come out.

Alex was excited because since today was his fifth birthday, he would once again be able to access the system and start using his two other abilities. The only reason he was able to use his Saiyan powers until now, was because it was a bloodline ability. The system also limited the use of bloodline abilities, by limiting each person to only one through the system. However, Alex had found a way to bypass the system to an extent. As far as he was concerned, bloodlines would be the key to his future growth, as they would only increase his potential.

'Open system' he thought to himself. The same screen he recalled from five years ago popped up in front of him, except it now showed that he had three deliveries in his inbox. Before Alex could open them though, the image of a strict looking office woman popped up in his system, shocking him. 'Who the hell are you!?'

'Good morning, and happy birthday. I'm your watcher, an angel if you will. I'm here to watch over you, and assist you while you grow. Everyone part of this game has one of us with them. My name is Lauren.' Alex was speechless for a moment, before moving on. He opened the first of his messages, and it was his next choice from the shop. Suddenly a beautifully decorated wooden box appeared in his hands.

Alex smiled as he opened the box, and looked down at the sixteen Crimson chess pieces. This had been the way he found around the system. He was restricted to choosing only one bloodline, but by choosing the evil pieces from the high school dxd world he would not only be able to have fifteen servants following him to other worlds, he would also be able to turn himself into a devil. In the series, there was a ritual that a high class devil needed to perform to become a "King", but Alex wasn't part of devil society. As a result there needed to be a king piece added to the set to accommodate him, and each piece would turn the user into a devil while keeping their original body.

Alex was excited to think about it now, a saiyans battle potential with a devils magic. He put the box under his bed to use the piece later when he didn't need to worry about interruptions, and turned to his next message, his third choice. He opened the message and,

[DING! A new update has been detected for users system, install now?]

Alex smiled once again, and selected to install the new update. His third option was for the job leveling system from The Death Mage That Doesn't Want a Fourth Time series. As he didn't have access to a job changing station, the system allowed him to change jobs whenever he reached level one hundred in his current job. As he doesn't have a job yet, it currently read [jobless].

The reason that he made this his third choice, was that the job system would allow him to access unique abilities depending on his actions, and he would be able to increase his capabilities as long as he had the corresponding job. Even if he couldn't use magic well as a devil, just having the [mage] job would help him increase his magic capabilities tremendously. His first choice when he could choose jobs though, was hopefully a blacksmith job, so that he could make his own weapons for the future.

Alex then turned to the last message, but didn't open it. He was too busy trying to not dance with joy, as he won his gamble. The world he had chosen, was the world of high school dxd. There was the potential to get another ability here at birth, known as the sacred gear. The problem with this though, was that only humans would be able to be born with sacred gears. However, Alex was informed that even if he chose a bloodline that affected him physically, he would mostly be ignored in order to ensure there was no complications. Alex thought, 'would this apply to the sacred gear system as well?'

He had several reasons for choosing the dxd world, but one was the possibility of receiving a sacred gear as an automatic fourth ability due to it not being part of the system. As he was a "human" according to the world, he managed to fool the sacred gear system. Alex was extremely excited, and opened the message from see what sacred gear he got. He suddenly froze, and mentally screamed,

'WHY THE FUCK DO I HAVE ISSEI HYOUDOUS BOOSTED GEAR!!!???'