My Brother Who Doesn't Play by the Rules

I am a new author. If I write something bad for the first time, I will correct it in time. Please bear with me. The background is fictitious and any similarity is purely coincidental. Ling Shuang, a teenager in 2025, traveled to the parallel world of Tomb Raider Notes due to an accident of the system. However, due to a mistake in the system, it was more than a thousand years in advance, so the system found Ling Shuang to fight against it in another main world that controls three thousand small worlds. He can travel at will and be reincarnated into the top manager of the main world. The child, and gave Ling Shuang three forces to put in each world. Is this seemingly harmonious family really that harmonious? How will Ling Shuang, as the twelfth ancestor, fight against it? Will Ling Shuang find it and smoothly heal the regrets in the parallel world of Tomb Raider Notes (the protagonist's identity is very strong, for example: the tenth in the main world) Two ancestors, the masters of three forces, the patriarchs of the ten major families, and the mysterious K among the shadow forces. The three forces are Dark, Shadow, and Skynet. Dark is a more mysterious existence than Shadow. These two organizations are responsible for assassinations and collecting money to do things. The protagonist occasionally accepts tasks, but the money is expensive, and the protagonist is K. Shenlong never sees the end, (mainly) The protagonist is too lazy to do it) Skynet is mainly responsible for collecting information. As long as there is money, there is no information that they cannot find. These three forces exist in the Three Thousand Small World. The ten major families only exist in the parallel world of Tomb Raider Notes. In order to facilitate the protagonist to kill it in the later stage, the protagonist has many titles, so different titles will be used in different places)