Nana Mori will release her new single "Cafe au Lait" on October 7, marking her first new music release in approximately four years.

The title track was written and composed by Aimyon, whom Mori has long been a fan of, even joining her fan club and attending her concerts. As Mori celebrates the 10th anniversary of her entertainment career, she personally approached Aimyon about writing a song for the milestone.

On the collaboration, Mori said, "It started with the thought that I wanted to do something that would feel like a reward for myself—something that, when I look back on it someday, would make my heart relax."

Aimyon praised Mori's performance, saying her voice perfectly captures the song's "heavy affection and refreshingly straightforward honesty."

The single will be available in both limited and regular editions. The limited edition will come with a Blu-ray and magazine-style photo book featuring new photos of Mori, as well as a two-shot photo with Aimyon.

Mori will also reunite with fans at her MORI NANA 10th Anniversary 'decade' event in Tokyo on October 18, marking a rare opportunity for her to meet with fans in person.