Eve has announced his move to Sony Music label Echoes, along with his first release under the label, "AIYOU," to drop on October 2.

The song was written as the ending theme for the first cour of The Apothecary Diaries Season 3, which begins airing on October 2. Echoes is also home to artists including YOASOBI and Tatsuya Kitani.

On the song, Eve explained that while mysteries can be solved, understanding another person's heart is not always as simple.

"Sometimes, feelings that cannot be put into words can create a distance as vast as the universe between two people who are right beside each other," he said. "I created 'AIYOU' while thinking about the mysteries of the heart."