I can improve every night in an alternate dimension.

Altair suddenly woke up in a classroom, only a few moments ago he was in front of his computer working late on a project due the next day. "What's going on?" he thought to himself. He realized that he was in another world and that the human race was an inferior race on the verge of extinction since the Earth was taken from them by other races. The humans vowed to take revenge one day. Altair finally found the opportunity to fulfill his dream of becoming the most powerful warrior, especially when one night... [Beep...Welcome to the pocket dimension]