She is a former member of the girl group AKB48 under Team 4[1][2] and of AKB48's subgroup Tentoumu Chu!.
[3] She is now a solo tarento and idol represented by Twin Planet, and formerly worked part-time at a yakiniku restaurant owned by fellow former AKB48 member Mayumi Uchida for a short period of time after graduation from AKB48.
Her persona on-screen is associated with exaggerated movements and reactions, a style that is similar to Nana Suzuki, who is a senior at her agency Twin Planet Entertainment.
On November 22, 2022, Nishino announced her marriage to Gokuraku Tombo and Yoshimotozaka46 member Keiichi Yamamoto, who is thirty-one years her senior.
[5] On October 17, 2024, she gave birth to a healthy baby girl.