Cast of
Hello! Project 2018 Summer ~OG Corner 2~ Hello! Project 20th Anniversary!!

About Hello! Project 2018 Summer ~OG Corner 2~ Hello! Project 20th Anniversary!!

Hello! Project concert held at Nakano Sunplaza Hall.

Mari Yaguchi (矢口真里, Yaguchi Mari, January 20, 1983) is a Japanese female talent. She is a former Hello! Project memb...