パラドクスイヴ (Paradox Eve) is a maimai original song by Teary Planet, the in-house musical unit behind much of the game's original soundtrack. The track debuted on September 12, 2024, as part of maimai でらっくす PRiSM, unlocked through the Sky Street Area 6 progression system. Composed, arranged, and performed by multi-instrumentalist Nanao, who handled vocals, guitar, lyrics, and composition, the song also features Masato on bass, Chio on piano, and Youki on drums, giving it a full-band rock arrangement that drives forward at a brisk 180 BPM. The music video was created by the artist duo しょうけい and しょくむら. The song is deeply tied to the ongoing original narrative woven through maimai's Sky Street areas. Its flavor text tells a grim story of a dying character confronting a time-traveling figure named Akatsuki, who has used the dangerous C204 theory to cross temporal boundaries. The speaker, bleeding out and out of time, places a curse on Akatsuki: that no matter what reason he may have, having crossed time with C204, he is bound to see this world through to its very end, a curse of eternal obligation and solitude. This dramatic lore positions Paradox Eve as a climactic story beat within the PRiSM-era arc, giving the song an emotional weight that extends beyond the rhythm game stage. The title itself, a fusion of "paradox" and "Eve," hints at the thematic collision of time paradoxes and a fateful beginning, or ending.