One day, I was 38 years old and 20 years old as a company slave, and I ended my life when I was hit by a car and was boring. However, when I woke up next time, I was reincarnated in another world. At the age of fifteen, the memories of his previous life revived while he was undergoing a ritual to receive benefits. The benefit I got there was an out-of-the-box skill that could open a space for one person to enter, but in reality it is a benefit that I can create my own dungeon, and if I notice it, I have gained various abilities and become the strongest.