She announced the birth of her daughter on October 2015.
She's a member of the seiyuu group "MORE PEACH SUMMER SNOW", alongside Haruna Ikezawa, Mamiko Noto and Ryo Hirohashi.
She announced her marriage on July 29, 2013.
Karaoke is one of Chiwa's main hobbies.
She's one half of the seiyuu duo "coopee", along with Natsuko Kuwatani.
Once during her high school days, she wrongly bought a voice acting magazine instead of a fashion magazine, but then, after reading the magazine, she became fascinated about the profession and wanted to become a voice actress afterwards.