Chahar! The great 1950s sci-fi adventure comedy! Ball rockets, rare rockets, rare tanks...lots of fun and unusual mechs will appear! Honwa honwa~. Hinomaru-kun was enjoying his unusual inventions as usual when a messenger came from Manga Planet. Apparently, the manga planet is in danger of being invaded by planets, and Hinomaru-kun's unusual invention is the only way to fight back...? Digital versions delisted