Yumiko Takino is a Japanese tarento, model, presenter, actress and former idol singer. She was a member of STU48 and the lead performer for the title songs in the group's first five singles, and is also known for her saxophone playing.

"Shitsuren, Arigatō" is the 57th single by Japanese idol group AKB48. It was released in Japan by King Records on March 18, 2020, in four versions. It debuted at number one on the Oricon Singles Chart and Billboard Japan Hot 100, with over 1.4 million copies sold in its first week, making them the first girl group to surpass one million copies in its first week that year. The center for the main track is Mizuki Yamauchi. This single also serves as the last single and senbatsu for long time member Minami Minegishi.