Ōgame stated that she became a voice actress when she saw the stage where the voice actors appeared, felt fresh and attractive, and knew the diversity of the profession of voice actors.[2] She passed the 2nd Sigma Seven public audition held in 2007 while attending Sogo Gakuen Human Academy (Asuka Nishi, Mai Fuchigami and Atsushi Tamaru) and made her debut in 2009. She played the role of Mayshen Trinden in her debut work, Chrome Shelled Regios. A debut support project titled "Ganbare Mayshen" was held on a related site.[2]
Ōgame mainly voices female characters. In 2009, she played the role of Maki Hoshikawa as the main heroine of the video game Tokimeki Memorial 4.
Since October 2014, she has also been active as a professional member of the Japan Professional Mahjong Association. She left the organization in April 2022.[3][4]
On March 21, 2020, Ōgame confirmed that she is married to Nobuhiko Okamoto after Shūkan Bunshun reported he had an extramarital affair with an unnamed woman.[5]