Overpowered Sect Building System

George was killed accidently in the middle of a war. George suddenly heard a voice coming from his mind. "System fusing with host's soul! 1% .... 2%...." "What was that? Can they just let me rest in peace in Heaven?" "30% ..... 40% ..... 70%" "Ughhh... Stop!" said George with an annoyed sound "90%..... 100% Completed! Ding! Congratulations for binding with System!" George suddenly felt pain over his body 'Holy Sh*t! Is the one in the novels that I read where one died and was reincarnated with an System!?!' said George "System? Host?" said George "Yes I am your system, The Sect Building System. And you are my host." This is the story where the MC builds an Overpowered Sect that is feared through out the whole world