The Journey of Collapse: Starting from Becoming Kevin's Girlfriend

"Single male protagonist + no virgin + "sunny, positive and cheerful" + no system" The "Codename: Trace" plan has begun to be implemented, please record: "Hi~ Hello, ahem, I'm sorry, I look a little embarrassed, I'm sorry, my "past", I am you, and I am also our "present", um... How do I put it, our time and space... Failed when fighting against the Honkai, ahem... Ha... Our civilization was destroyed, but we will not give up! Never! So, we paid a heavy price, of course... Including the cores of me and Ellie. My core has the power to freeze time and space, and hers is even more powerful. It represents the "origin". The great inventor Velvet invented a God Key based on this base. Its name is "*", it's a beautiful name, isn't it? It successfully turned back time, back to... Bah... Bah... Bah... Time is running out, so I wish you good luck, and... Bah, bah, we... Are waiting for you at the end of time."