Imperial Frost

During the chaos following Sosuke Aizen's betrayal of the Soul Society, Squad 10 Captain Toshiro Hitsugaya receives a sensitive and mysterious assignment. He's been given the responsibility of looking after a young girl; a former resident of the Soul King's palace. As the two get to know each other better, they begin to realize that their meeting is less coincidental than it appears on the surface and that the girl was much more than a mere resident of the Royal Palace.