: Theme singles can be found through retailers like Yumeya Club or on Apple Music .
: A more melodic and sentimental track, contrasting the darker tone of the opening.
You can find the official tracks and various covers across major music platforms: : Available on Spotify and YouTube Music . The World S Finest Assassin Music
: A fast-paced, high-tension J-pop track that mirrors the protagonist's cold efficiency and inner search for meaning.
"Dark Seeks Light" from The World's Finest Assassin (English Cover) : Theme singles can be found through retailers
: Included in the single Dark seeks light / Sanbunteki LIFE released by the Lantis label. Ending (ED): "A Promise" Artist : Performed by Aira Yūki .
: Features various OST playlists and unofficial remixes/covers. : A fast-paced, high-tension J-pop track that mirrors
The main themes define the anime's identity and were released during its initial run in late 2021. Artist : Performed by Yui Ninomiya .