We Agreed to Show Off Together, Brothers, Why Are You so Great?

[The protagonist is sinister + unsystematic + humorous + decisive in killing] Yun Bai didn't expect that he and his brothers would travel through time just by having a meal; what's more, he didn't expect that they would travel together. Forget it, what he didn't expect was that they actually traveled through time a thousand years earlier than he did! Only when Yun Bai traveled through time did he realize that all three brothers had become emperors! With three great emperor brothers behind him, let's see how Yun Bai creates his own myth in this world! [Introduction is incompetent, please move to the text]