Arai Manami is an active member of Up Up Girls (Kari). She is currently the youngest member of the group. Her image color is Blue.
Arai Manami was born on November 19th, 1997, in Gunma Prefecture. She joined Hello! Project as an Egg in 2004 at the age of 7. She joined alongside fellow UUG (K) member's Sengoku Minami, Furukawa Konatsu, Mori Saki, Saho Akari, and Sekine Azusa. She remained active as an Egg until "completing her training" in 2010.