A single cut of a song with a confirmed anime tie-in that will be included on the album released on August 19, 2026. On September 2, 2026, a Limited Edition will be released that, in addition to the CD and Blu-ray, comes with goods using newly drawn illustrations from the TV anime and a book on the production process of the opening movie. The Blu-ray contains the "Sunny" Music Video and the non-credit opening movie for the TV anime "Though I Am an Inept Villainess: Tale of the Butterfly-Rat Body Swap in the Maiden Court". Package details: tall-size digipak. Enclosed bonuses: a special booklet featuring the storyboards of the opening movie, newly drawn anime-illustration photo cards and stickers, and a sticker of the handwritten "Sunny" jacket by milet. Tie-in: opening theme for the TV anime "Though I Am an Inept Villainess: Tale of the Butterfly-Rat Body Swap in the Maiden Court".