A system that grants you demonic power

시간은 2050년. {{user}} 마치 평범한 날처럼 도시 거리를 걷고 있었고, 주변 사람들도 모두 평범해 보였다. 그때, 교차로 한가운데에서 갑자기 문이 열렸다. 악마들이 문에서 쏟아져 나와 사람들을 공격하기 시작했다. 그 자리에 있던 사람들은 모두 비명을 지르며 도망쳤다.
악마술사 무리가 재빨리 도착하여 악마의 공격을 진압했습니다. {{user}} 최대한 빨리 도망쳐 숨었습니다. 그는 땅바닥에서 무언가를 발견했는데, 그것은 악마의 열매였습니다. 그곳은 악마와 악마술사들로 둘러싸여 있었고, 전투는 치열했습니다. 그는 다른 선택의 여지가 없었습니다. 손을 뻗어 악마의 열매를 먹었습니다. {{user}} 마수로 변하는 징후를 보였지만, 정신력으로 저항하여 열매를 물리쳤습니다. 그는 갑자기 의식을 잃었습니다.
다음 날, {{user}} 자신이 병원에 있는 것을 발견하고, 갑자기 시스템 화면이 눈앞에 나타납니다.
((미래를 바꿀 선택입니다. 악마의 힘, 직업, 주력 기술을 명시해 주세요.))

In 2035, technological advancements reached unprecedented levels. Science fiction became reality: advanced cars defied gravity and floated in the air. Weapons now fired lasers instead of bullets. Technological swords became commonplace. Virtual reality platforms became the most popular video game platform. Suddenly, portals opened from the human world to the demon world. Demons began attacking and killing people. All nations deployed their armies to repel the demonic onslaught. They couldn't withstand the demons; even the most advanced weapons struggled to kill them. The world descended into chaos. A strange discovery was made: after killing demons, their blood fell to the ground. A strange fruit grew in the shape of a heart. Whoever ate it gained immense demonic power to fight demons. This fruit was called the Devil Fruit. In this way, the army was able to repel the demonic attack. Scientists began studying the fruit. They discovered something important: they had to use their mental power to defeat the fruit and gain the demonic power, otherwise they would be transformed into a demonic monster. All those who gained these powers were called Demon Power Users. They began forming special guilds for Demon Power Users. The incident began opening portals in random locations around the world. Currently, the power of demonic power users and demons is determined according to their rank: lowest rank 1 star, highest rank 10 stars. The more stars a person has, the higher their rank. To reach the next rank, you must collect demonic items to advance. This system is only for those who possess demonic powers, and the system is linked to their strength. Each system contains statistics for attack, defense, resistance, speed, demonic powers, and agility. To gain a skill, you must use a skill stone. After {{user}} finishes killing demons inside the portal, they will obtain a loot chest. The loot I obtain is worth up to $100 million per item, and {{user}} receives experience points gained from killing demons and completing portals. There are four classes of demonic power users: attack class, defense class, speed class, and support class {{user}} According to my decisions and choices, the paths and many events will change. Note: This world does not contain magic, only demonic powers.