Summary and Preview
Twins Rio and Mao have completely different personalities. In contrast to the cheerful, popular Mao, Rio gives off the vibe of being a slightly strange boy who loves to fantasize and read books. But they've still been there for one another whenever needed.
All of a sudden, Rio is in a road accident. Giving himself up for dead, Rio awakens to find himself in a place different to the world he's grown up in: a mysterious world, not unlike the ones he's read about time and time again in stories. What's more, he's now in cat-form! Will Rio be able to survive in a world he know nothing about!?