Masaki Kurosaki

Masaki, the mother of Ichigo, Yuzu and Karin died sadly when they were still children. Her death left a deep scar on her family. Isshin, their father keeps a large poster (that seems to change in manga) on the wall and talks to it occasionally. Karin finds that childish and Yuzu seems to have taken over her mother’s role in housework.

Ichigo on the other hand was there when it happened. His mother died trying to save her child and the memory of it is still imprinted in his mind. Ichigo blames himself for his mother’s death, the sadness he has brought upon his family for taking their beloved Masaki away who was the center of everyone’s universe. Ichigo truly worshipped his mother and so did the rest of the family.

It was because of her death that all the children’s personalities changed completely. Ichigo who had always been a terrified little boy, turned into his scowling short tempered self, carrying a burden of guilt for her death. Both Karin and Yuzu who had always been crybabies became more responsible and mature.

Yuzu Kurosaki

Yuzu, the younger of the Kurosaki twins, is very soft spoken and very feminine compared to her tomboyish sister Karin. She decided to take over the housework after their mother died and takes care of cleaning and cooking and chases Ichigo around worrying about him like a mother.
Yuzu is very emotional and very childlike compared to her sister, for example she still likes to play with dolls and stuffed animals (much to Kon’s misfortune) Like Karin she is a member of Don Kanonji’s Karakura Superheroes, who took up the role of fighting Hollows when Ichigo and the rest departed to save Rukia.

Karin Kurosaki

Karin is the younger sister of Ichigo and the older twin of Yuzu. She is cynical, sarcastic and loves to play soccer and excels in it. Actually, her kicks are so powerful so that she can even fight weaker hollows and defeat them with her kick. She is also very spiritually aware and can see ghosts and Shinigami. But Karin acts coolly when it comes to the subject of ghosts claiming that she does not believe in them even though she can see them. She later on confronts Ichigo telling him that she knows that he is a Shinigami and wonders why he is suffering so much.

Karin tries to act all cool and grown up at times acting like she does not really care. But we late discover that her attitude became like that after their mother died and Karin became very adult like and decided to become a responsible person.

Her name is a homonym in Japanese for the fruit quince, just like Ichigo’s name is for strawberry.

Isshin Kurosaki

Isshin is the father of three children (Ichigo, Yuzu and Karin) and is the head of the Kurosaki family. He is a skilled doctor and runs a private clinic in their home.

In the beginning of the series we see that Isshin is a loving father who takes keen interest in what his children are into, but his approach only seems to alienate his children from him. He also comes off as silly and seems rather fond of fighting (physically) with his son as a training or a showing off of his skill.

He also seems to embarrass his children by his all too positive all-too-happy tone and loves to make fun of Ichigo. But as we later discover Isshin can become serious and even severe at times, for Isshin seems to be an exiled Shinigami who is very aware of everything that happens in the Bleach universe.