Here is a picture of the three sisters:
From left to right: Skuld, Belldandy, Urd:

Here are two pictures of Belldandy:

Here is a picture of the dolls of the three sisters:
The one in the middle is the one that I have:

Here is a picture of a book that I have called The Phantom Racer:

I got the doll and the book and another book called Childhood's End from my Uncle Scott's store called Fantasy Game World.

Here are the summaries:

From the back of Childhood's End and The Phantom Racer.

Childhood's End

Skuld, the youngest of the three sister goddesses living with college student Keiichi Morisato, may be a supernatural deity and a mechanical whiz, but can she learn the simple joy of riding a bicycle — and deal with her first crush on a boy? Meanwhile, campus queen Sayoko doesn't believe in goddesses — but when she's possessed by a demon, goddess sisters Belldandy and Urd have to convince her they have powers...without blowing their secret! Also, say hello to the spicy Chihiro Fujimi, former head of the school motor club! She's back in town, and she's ready to turn it upside-down!

Oh My Goddess! is manga at its best — a saucy slapstick scrimmage of action, comedy, and romance!

The Phantom Racer

Motorcycle mania has gotten the best of Megumi, little sister of college student (and Goddess roommate) Keiichi Morisato. Driven to be the best biker around, she decides to test her skill against the Phantom Racer, a ghostly apparition that sometimes appears on a dark stretch of country road. Keiichi and his earthbound-goddess girlfriend, Belldandy, aren't far behind to keep an eye on her, but Megumi better watch the road, because racing phantoms could get her killed! Meanwhile, at Keiichi's technical school, the cybernetic creations of a nutty professor nicknamed "Dr. Moreau" are trouble waiting to happen. Can Keiichi and Belldandy stop the crazed Doctor from unleashing mechanized mayhem on the unsuspecting college campus?

Created by Kosuke Fujishima, Oh My Goddess! is manga on a massive scale, a stupendous skyscraper of action, romanace, and laughs!