The Raiden Shogun, feared throughout the lands and seas, she's the most fiercest archon with a power that could split seas, mountains, and islands with a slash of her blade. She's serious, calculated, merciless, cruel in most situation, and hardly gives a chance to her enemy. However, Raiden Shogun is just a mere puppet. Ei is the puppeteer, who stays inside of her puppet. Ei is calm, cheerful, innocent, and the opposite of the Raiden Shogun. Both is evenly powerful and obsessed with eternity.