Uploaded November 2022 | Updated September 2026, 2 days ago

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This theme is a royalty-free composition.
Plays for most bosses in the main story.

Original name: Ariori (キャワユイそなたとアリオリハベリイマソガリ)
Composer: Rengoku Teien (煉獄庭園)
Full archive of their music: archive.org/details/rengoku-teien

Background artist: アナベル
Source: pixiv.net/en/artworks/24299262