NEXO : I Came to Conquer Another World

Long after the extinction of humans on earth, only 4 children with synthetic bodies survived the extinction, they carried out Interdimensional exploration on a mission to find a new world to rebuild civilization from the old earth. However, because they never felt that they were part of human civilization and there is noone had taught them about humanity, this holy mission was no more than a way to have fun for them. Then when Gravien, one of the four children, took the commander position of NEXO ships for the next 1000 years discover an another world with knights, magic, and fantasy creatures like those in movies, this discovery made him who was previously a laziest one, who could even watch movies up to 1000 year in a marathon, making a decision to conquer the world in its own way.