We’re Surviving in the Tower, and You’re Speedrunning the Dungeon?

[Subtle Emotions] [Think Things Through] [Save-Loading] [Rapid Growth] [The Appeal of Stats!!!] Blue Star became a chessboard for gods and monsters, and humanity became the pawns cast aside upon it. Mysterious towers appeared around the world. By overcoming the trials on each floor, humans could strengthen themselves and gain power, items, skills, and even blessings. Xia Wen was a drowned man betrayed by the world, but by chance, he met five mentors whom humanity called “traitors.” The White Tower Witch, whose starburst magic could incinerate armies; the silver-haired Watcher, who could cleave open rifts in time and space... They saved him, taught him the instinct and skills needed to survive, and helped him become one of the world's most powerful challengers. But during the one hundred and tenth monster siege, humanity was still nearly wiped out, with a death rate of 99.99%. One by one, the mentors passed away before Xia Wen, their bodies too frail to go on. Xia Wen resolutely chose to die, burning up his life to perish alongside the calamity. Fate turned back. Time flowed in reverse. When Xia Wen opened his eyes again, he found himself back at the moment the towers had first appeared. A high-difficulty dungeon that had held up the military for four months, one they believed could only be survived by the skin of their teeth, was cleared in record time by Xia Wen! He will grow rapidly, step beyond the chessboard, and become a player on equal footing with the gods! “This time, I'll be the one to save you.” “Saving the world can wait until after that.”