That's Right, I Created Your System

An immortal, undying troublemaker with a nasty personality is constantly looking for fun in the world.

For some reason, Su has to help the people on this planet break through to the next level of strength. To that end, Su created fourteen Systems and sent them onto the planet. As for the remaining four, Su decided to deliver them personally.

"People don't grow when they're comfortable, so let's just make sure everyone has fun." Su savors the amusement brought by other people's intense emotions while slowly setting this world free.

(Please leave your sense of shame outside before you come in.)