The King's Only Queen

In a peaceful realm of Dragons and eternal beauty. Resides Queens Cooki and Ryuuki -Daughters of Ryuujin-no-Mikoto. The sisters were inseparable,physically, mentally, and emotionally. The two were at each other's hearts -and they'll tear the realms apart to find another.
It was one day,An invasion have came to the realm. Wounding and killing all of Ryuuki's soldiers and Cooki's guards . The man involved - Grimmjow Jaegerjaques. One of the men from Sosuke Aizen 's army. Cooki is kidnapped and Ryuuki is stuck in Karakura town, Desperately finding ways to find her twin sister.
While Cooki is imprisoned, She finds another side of the King that no one else has seen before. A softer side to a rude man that Cooki seems fond of during her stay. Will Ryuuki find her in time? Or will Cooki remain in Hueco Muendo with The King? ((Grimmjow X OC Do not own Bleach! OOC maybe. ))