I Still Need to Study After Traveling Through Time.

I thought that if I traveled to the end of the world, I wouldn't need to read. I didn't expect it to be a rebuilt apocalypse, Not only do I have to get up early every day to study, but more importantly, I don't know the math here! Sweet text, squeamish, cold talk, possessive and aggressive. Motto: No matter how the world changes, you deserve the best.