Go Through It Quickly and Take Away This Smiling Tiger

"Quick travel 1v1 + double cleansing + double male protagonists + main attack + sweet pet + pretending to be a pig and eating the tiger + white and black" —— "Next year when the hell gate is open, I will come to play with you." These were the last words Li Mingxiu said to his crush before he died... After that, he began to practice hard in the underworld. I don't know how many hundreds of years have passed. In his pursuit of power, he gave up a lot... It seemed that he slowly forgot about that agreement. —— (Fast pace/around 10∽20 chapters, sweet story, two-way running)