Quick Transmigration: Even If It's Kawaii, It's Still an A!

After completing enough interstellar missions, Mu Yunfan decided to take a vacation, so he hid away in a world with an ordinary storyline to enjoy himself.

Little did he expect to run into a rookie System that bound itself to him... Wait, why can one person have two Systems?

World One: Innocent, adorable junior * Cold, aloof top student senior

World Two: Soft and sweet junior fellow disciple * Righteous senior brother

World Three: Little fox cub * Cool, aloof tiger king

... (Feel free to suggest ideas!) \( ͯω ͯ)/