In late 2021, Nagase officially declared her retirement, with her final works winding down by . The decision was primarily personal; Nagase later revealed that she initially entered the industry for financial reasons rather than a passion for the work, and she intended to pursue her own interests once those goals were met.

In her farewell message, Nagase expressed gratitude to her fans, colleagues, and family for their support, stating, “[short quote if available, or a paraphrased sentiment]” . She has not yet disclosed detailed future plans but hinted at [possible next steps, e.g., pursuing education, behind-the-scenes work, or private life].

As Nagase concludes her voice acting career, fans and fellow voice actors alike have expressed their gratitude and appreciation for her work. Her dedication to the craft and her memorable performances have earned her a special place in the hearts of anime enthusiasts.