After accepting the inheritance from another world, he returned to Earth only to be faced with constant natural disasters. He used holographic online games to select talents, and transferred materials to and from other worlds... All he wanted was to stay with you in the difficult end of the world, a little longer, and a little longer.
Fake brothers, attacked by evil-doers vs loyal dogs
Purpose: Spend all your energy to adapt to the world, all I want is to be with you