After being brought into the Kuchiki Clan, some years later Rukia is told that she has been betrothed to Ichigo, the heir to the Shiba Clan. Until then, she had not realized that she was in love with her childhood friend and guard, Renji. Doing her duty, she goes along with the arrangement but Renji is not happy about it. Can he keep to his duty and let her wed another? AU, RxRxIxO