Uresai Yatsura x Male reader

Y/n the adoptive brother of Ataru and the youngest son of the Moroboshi Family. Since he can remember, Y/n always considered himself lucky in life unlike his brother. Until one day that all change when an alien invasion arrive on earth as they chosen Y/n, himself to challenge the fate of earth.

Is this fate of his luck running out or... the beginning of greatness in life.