Cross Angel stands among six chosen entities entrusted with safeguarding a Seiran—a sacred egg of immense power—that proved pivotal in vanquishing Shiso Jura during the cataclysmic conflict that reshaped Gensōkai. Alongside Osukui Queen, Buddha SANZO, God Hanasaki, Kijin Ali Baba, and Taitei Whale, Cross Angel joined forces to wield their Seiran against Shiso Jura’s destabilizing influence. This coalition emerged as a counterforce following his absorption of Black Zeus and subsequent bid to dominate the Akuma faction through unrestrained power. The collective activation of the Seiran marked the turning point in curbing his reign, cementing their role as guardians of balance within the fractured world.