Shinsou Mermaid / Alliance Stardust (Twin Stage) [EVENT 60]

What is Kuroi doing here, and why is he actually extending an offer to 765Pro? Competition, of course! On Team 765, it's Hibiki and Tsubasa with Shinsou Mermaid! On Team 961, it's Shika and Leon with Alliance Stardust! The battle is on!

Note: This event's proper title in-game is 深淵の蒼、熱焔の緋 ("Abyssal Blue, Fervent Red")