The founders of big company Trillion Game, Haru and Gaku, are two young men who become the first Japanese people in the 21st century to be listed in the top 10 of The World's Billionaires. The story takes from Gaku's prespective, who recalled how he came this far: his first encounter with Haru, their first establishment of Trillion Game, and people who are involved with the success of the company.