Violence Jack

A sequal to Devilman from fanservice father Go Nagai. It is known for its bad english dubbed ova's and dark edgy hardcore tough manga.

Jun
A biker in leather who's bf was killed by bikers(its different in the anime) she has a bath in chapter 2 of the manga.

Aila Mu
A former fashion model with a curvy figure and a caring heart. In the manga chapter 10 (King Of Brutes) she goes to a hot spring but appeared in the Evil Town chapter and anime(without bathing).

???
(someone fill in name later) is a busty girl who wears a fur coat and no top with her untamed hair in a top ponytail. she goes to a school in the wasteland and meets an avatar of violence jack(as a young yet tough youth) she seems unserious about her studies but after a group of men come and try to raep her, jack saves her and she later dresses more conservatively and goes back to school after a shower in the rain

Jyanu?
(note: name may not be accurate) in chapter 26 of ciolence jack a muscular girl in knight armour is prisoner by a warlord and a guy she falls in love with helps her have a nude shower scene. [Go Nagai Wiki article]