溝口勇児

Yuji Mizoguchi (born November 23, 1984) is a Japanese entrepreneur, investor, and businessman. He serves as President and CEO of WEIN GROUP, BACKSTAGE, REAL VALUE, and NoBorder, and as COO of BreakingDown. As a "serial entrepreneur," he manages between 15 and 20 companies as of September 2025. He is from Tokyo.