Honkai Impact 3Rd: Mobius's Regret from the Start

He transmigrates to St. Freya Academy to work as a teacher. Just as Su Bai is wondering how to clear the game with one life, he successfully activates the Perfect Life Simulator. [You are the love of Mobius’s life, the original proposer of the MANTIS project, and the one who gave humanity the power to fight back against Honkai. You are godlike, yet not human, and your achievements will live forever!] [You are one of the only two Herrschers in the Previous Era with humanity. You praise the greatness of life, yet in the end, you fall to the very life you have praised!] [You are the one Aponia calls a defier of fate, the one the world rejects. The Finality is yours for the taking, and you are the end of the world!] Behind these dazzling, glorious simulated lives, Su Bai must face... Mobius: “Little white mouse, it’s time to end our game of hide-and-seek~” Elysia: “Su Bai, if I’d chosen a different option back then, would the ending have changed...?” Aponia: “Our fates were woven together long ago. Fate has joined us, and this future belongs only to you and me.”