Yokoyama Yui is a Japanese idol singer. She was a Research Student of AKB48 before being promoted to Team K in October 2010 to replace Ono Erena. She was transferred to Team A in the Tokyo Dome Team Shuffle in 2012 and gained a concurrent position in NMB48's Team N. The concurrency was revoked during the 2013 Budoukan concert. Following Shinoda Mariko's graduation in July 2013, Yokoyama became the captain of AKB48's Team A. She is also a member of the subgroup Not Yet. On September 12, 2021 she announced her graduation from the group AKB48. Her graduation concert will be held on December 9, 2021 at AKB48 Theater. (Source: tokyohive) Watch drama online for free.