Let's explore the reality and fantasy of Saitama and Kawagoe City! A 2D exploration type RPG traveling in a world with Japan's Saitama prefecture as motif! No gachas! No social functions! No online game functions! ◇ ◇ About Saitama City ◇ ◇. Located in the north side of Tokyo, Saitama City is one of the most populous city in Japan with a population of 1. 28 million.