Kokoro on Mars: Hero come to Mars.

This is a sequel to "Kokoro on Mars: Beautiful Little Garden," a story about Kokoro, a cheerful girl living in a Martian colony, and her puppy Koro. This work was created specifically for ebooks. It's packed with the fun that only the Hero Crossline series can offer, including crossovers with heroes from other works! In the first chapter, Shu, a boy who tries to form a baseball team on Mars, appears as "Doji Armor BEE"! *This is the original ebook version.