I am reading "Shiva-Purana" this spring. I was reading "Shiva-Purana" last spring, but it was selective reading as I wanted to read only Chapters, devoted to Shreemati MahaGauri-Devi at first, that is only Shaktika Chapters.
"Manjari-Bhava" is the key notion of Shree Gaudiya-Sampradaya, as by following to The Tantrik Sadhana according to Shree Gaudiya-Acharyas a sadhaka will be born as a younger gopika-dasi (manjari) of Shreemati Radharani-Devi. You can find details in "Shree Narada-Purana".
Nearly the same notion in "Shiva-Purana", as you see the following Verses (especially, Verse 41) sing about Sarupya-Mukti at ShivaLoka with obtaining a status of dasi of Shreemati MahaGauri-Devi: