It is the end of the Edo Era. It's been 250 years since the Edo Shogunate was established. The way people who've forgotten about war compete is to “gamble”… One day, Oomikami Kanra, a female instructor at a swordsmanship dojo, meets a man. His name is Toyotomi Hide. He has a rare talent for gambling, and he has the ambition to change history…