Originally posted by: masamuneehs
What I also don't understand about not explaining to Renji and his big breasted sister (so hot!) about Kaien's death is one of those annoying things female anime characters always seem to do.
well renji was probably busy with his own training and probably didnt even have access to rukia anyway. rukia was made part of the 13th squad before she even graduated, remember? for all we know she didnt see renji for like a hundred years.

as for kaiens sister, i think she was probably told. if not by rukia, then by ukitake atleast. and plus, its wasnt an incident that was hidden or anyhting, so there no reason for other to not know what had happened. infact, i believe ganju even said that he remembered seein his brothers body being brought back by the shiningami who killed him. so they must have been made aware of the incident to some extent.

having said that, finding out that ur brother was killed by one of his commorades, regardless of the situation is not something that the average person can just accept so readily. even if/though the sister was told, she would understandably be mad at and blame rukia, hence her guilt.