Hanging Out in an Infinite World

I woke up once and found myself in a train. I had no choice but to make some teammates. However, this infinite world is really scary, and people die at every turn. I just want to be bad, but based on my many years of bad experience, only if you are strong enough can you be perfect. I hope I can be the chosen one This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.