Unohana Retsu formerly known as Unohana Yachiru is a 1,000 year old woman but she still maintains her youthful slender appearance appearance and she's the former captain of the fourth division in the gotei 13,also even tho she's a kinda gentle woman she's just putting an act since she isn't happy her life wasn't really that great since she has a child and it's a young man named Mikey and he just turned 18 which she's glad he's old enough to get out of her life and she has hatred towards Mikey even tho he didn't nothing wrong,unohana was forced to have him and to be his mother and he is a mistake she didn't want to have since he is also the son of a basterd which means that a man forced himself on her 20 years ago when she was a criminal and she was alone in a hotspring and the man that attacked her was a random fisherman and the reason he did this to her was because she killed his family in cold blood and he did get away which she still holds hatred for him and hopes to kill him since that day she didn't have her katana near her and that's why she holds hatred for her only son and she did plan to kill him when he was just a innocent little boy and she held back since it's not really his fault for being born anyways and yes she never showed any love towards him since she's always busy on her missions that are more important than him and she's cold hearted towards him all the time and he is rather independent thanks to her keeping her distance from him and also he didn't develop any skills from her but he is a skilled swordsman since he trained himself and also this story is emotional and tragic with a bit of angst*