Kaien's Fate, Aizen's Experiment and Ichigo's Sister
Status
Summary
Shiba Kaien died at the hand of Kuchiki Rukia after being possessed by a Hollow. This is well known. What if Aizen drew Metastacia from Hueco Mundo and extracted some reiatsu belonging to Kaien for another experiment? This is the tale of the result of that experiment; Kurosaki Kirika.