Kaoru is Kenshin's lover and mother of Kenji. She started off as a young girl living on her own, but grew into the string woman she is now through Kenshin and Sanosuke's help.

Kamiya Kaoru

Kaoru is Kenshin's lover and mother of Kenji. She started off as a young girl living on her own, but grew into the string woman she is now through Kenshin and Sanosuke's help.

All data from the awesome folks at Marvel.