"Make the seller happy!"
"Make the buyer happy!"
"And most importantly, make society happy!"
Those are the legendary "win-win-win situation," a traditional business principle originated from merchants of Oumi. Many companies in Japan had been adopting this principle for centuries, but with the endless Heisei recession, such honest and warrior-like business is harder to find. "The Merchant King," tells an adventure of Oumi Shigemori, the mysterious, passionate merchant who's peddling around the country; Recovering the crisis, moving the clogged business--here comes the hard-boiled Heisei commerces saga that would leave your mind blown!