Deguchi Aki is a Japanese pop singer and idol. She is a former member of SKE48's Team S, she graduated from the group in April 2014. The announcement was made by herself on March 13 at the end of Team S 4th Stage “Reset” at SKE48 Theater. Deguchi Aki joined SKE48 as a 1st generation member in 2008. She is part of Team S. She is a former AKB48 Kenkyuusei.