Kei Jonishi

 is a former member of the Japanese idol girl group NMB48. She was a member of NMB48's Team N.
Biography.
Jonishi passed NMB48's 1st generation auditions in September 2010. Her audition song was SCANDAL's Shunkan Sentimental. Her debut was on October 9, 2010. In March 2011, she was selected to Team N. Her first NMB48 Senbatsu was the single Zetsumetsu Kurokami Shōjo. Prior to joining NMB48, she has no experience in singing or dancing.
On the 2013 general elections, Jonishi ranked for the first time, placing 40th with 17,381 votes.
In February 2014, during AKB48's Group Shuffle, Jonishi was appointed the vice-captain of Team N. In 2014, she ranked at 58th with 14,194 votes in the group's general elections. In 2015, she ranked at 36th with 21,135 votes in that.
On April 18, 2017, Jonishi graduated from the group's Team N.