Honkai: Behind-the-Scenes Mastermind Simulator!

(Not a harem story. Slow-paced.) [You injected Honkai energy into the T cells of a cancer patient with AIDS and accidentally created a highly contagious virus capable of rapid reproduction.] [You named it the T-virus and spread it across the Earth through atmospheric circulation.] [This was not a disaster, but a trial of evolution for humanity, as they faced the Umbrella protecting them from Honkai.] ... [You gazed at the ravaged land, laid waste by Honkai, and decided that the real world was riddled with flaws.] [By researching ways to amplify the power of the Divine Key Fenghuang Down, you constructed a vast illusion covering the entire solar system, hoping to create a world free of Honkai.] ... [Pessimistic about the chances of defeating Honkai, you decided to eradicate all life except yourself, preventing any more Herrschers from being born. You would then wait for the right moment to revive civilization using the preserved genetic seeds.] [You named it the Tomb Plan.]

Lu Ye was engrossed in his simulation when countless girls suddenly leaped out in front of him.

“Lu Ye, spreader of the T-virus, caster of Infinite Tsukuyomi, destroyer of human civilization, mastermind controlling countless evil forces... You've committed every imaginable evil! Today is the day you die!”