[1] Prior to joining AKB48, Takeuchi signed a contract with Stardust Promotion in 2004[2] and appeared in Little By Little's music video for "Ameagari no Kyū na Sakamichi".
She was a member of girl group Fruits, born out of the audition tv show "Songs Star !!".
[9] In 2018, Takeuchi participated in the South Korean competition series Produce 48 as one of the Japanese contestants from AKB48 and its sister groups.
[14] On March 8, 2019, South Korean entertainment company Mystic Story announced that they had signed an official contract with Takeuchi.
[17][18] In February 2020, Takeuchi was announced as a member of Mystic Rookies, pre-debut trainee group within the company.