ビジネスマン必勝講座 ヤクザに学ぶ 経済戦術
ビジネスマン必勝講座 ヤクザに学ぶ 経済戦術
ビジネスマン必勝講座 ヤクザに学ぶ 経済戦術 online in Romana. What are the 'negotiation tactics' learned from the yakuza other than fighting and blackmail??? The negotiation skills of the yakuza, honed to the extreme, are now revealed!!