[Following "The Cockroach of Doom," this is another superb masterpiece. Doomsday literature fans can read it with confidence! ]

On that day, a wave of zombies blocked everything.

On that day, he traveled through time for the one hundred and first time, and once again faced this world where human civilization had been completely subverted and shattered. The rules and morals of the past had disappeared, and the various countries had become the only remaining sparks of civilization. The entire doomsday world had become a cruel evolution game!

But for the little man Gan Ze, there is only one question that he must consider first -

Selling soy milk is no longer enough to make ends meet?!

(Grand Blue + Date A Live + Oregairu + ...)

Looking at the dilapidated Yorozuya before him, Tengu Ginyu fell into deep thought...

"Why are there still weirdos in this world?!" Tengu Ginyu put the Time Driver into the Four-Dimensional Chrysanthemum, plopped down in a chair, and burst into tears.

(Azure Archives + City + Campus + Azure Archives) That "miracle" is named Chu Yin. In the game Azure Archives, he holds the position of teacher in Givotos. He is a college student. However, one night, a beam of light shines into Chu Yin's dormitory...

"Hey? System! What do you mean Nohara Shinnosuke is a Pillar? What do you mean Uchiha Sasuke is a Pillar? What do you mean the Pillar Men and Hashirama are Pillars? Tailed Beast Jinchuriki? Josuke Higashikata can do that too?!" Lu Li unexpectedly transmigrated into "Demon Slayer" and awakened the Demon Slayer "Pillar" Summoning System! Every three days, Lu Li can randomly draw a "Pillar" and gain all of their abilities. Just as he was excitedly preparing to open the system and use the Pillars' abilities to fight Muzan, Lu Li discovered that the "Pillar" drawn by the system seemed a little different from what he expected. "Hey! System! I can tolerate the previous ones! But system, what the hell is this Optimus Pillar you summoned? Kibutsuji Muzan, huh?! Kokushibo, huh?! Tell my luck!" ...Tentative protagonist's alternate worlds: "Demon Slayer," "Fate/Zero," ...