The mysterious apocalypse is coming, luckily I have a simulator

Novel Summary

Seven days later, the doomsday comes. Fortunately, you have a simulator... [The doomsday simulation has begun] [Please choose one of the following three talents: 'Devil's Contract (Gold)', 'Resurrection of the Dead (Gold)', 'Mirror World'...] [...] [On the first day, the sun no longer rises, and the doomsday arrives as expected...] [On the second day, the temperature drops sharply, and citizens scramble for supplies...] [On the third day, safe houses are harmful to health, so staying there less is the best way... You are crazy, leave your safe house, and look for mystery] [...] [On the forty-fifth day, there is no difference between reality and dreams, you encounter a strong enemy... You die] [This simulation has ended] [Please choose one of the following three rewards: 'Devil's Contract'...] If you use the simulator properly, you can get a powerful doomsday reward every day before the doomsday. So, when the countdown to the doomsday ends, you are already ridiculously strong... ... (Shuangwen + Cthulhu elements)

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