Before time travel
The junior brother who is gifted, arrogant and favored, likes the senior brother who is affectionate but silent, and whose mission is to bring peace and tranquility to the people.
One day, the demonic realm that had been planned for a long time invaded, and the two of them inexplicably traveled to modern times.
Junior brother becomes a big star who becomes famous immediately after his debut
The senior brother has become a senior who plays a good role but is not popular