From the publisher:

In this omnibus, which collects Three Daughters, High Soft Lisp and more, Luba, Petra, and Fritz are moving on to the next phases of their lives and careers…and showbiz comes calling.:

In Three Sisters, which collects the graphic novels Luba: Three Daughters, High Soft Lisp, and more, the children are growing up and lovers have come and gone (and come and gone again). Luba, Petra, and Fritz are moving on to the next phases of their lives and careers, which puts their own pasts and relationships in perspective — and, since they've all settled in Los Angeles, showbiz comes calling. Venus shoots a backyard superhero movie, Fritz becomes a B movie actress, and children's TV show host Doralís has the grandest of finales.