Ryuoko's mother. Divorced, 53 years old. American Labrador Retriever.
Caroline and Osamu were 20 and 32 when they got together and after 5 years they married, 3 years after their son was born. 20 years after that they divorced.
Caroline met Bruce [her boyfriend] when she came in to eat about a year after her divorce.

After Ryu realised how happy his mom is with Bruce he started to accept him and they now have a good relationship.