There are two separate back-stories for Strawbrry, both set in their own unique worlds/universes.

Universe One:

Strawbrry is a fallen angel rabbit. Unlike other angels (and demons), who are born from a "sun's tear" that merge with either the light or dark energy that a planet is comprised of, Strawbrry was born from a "moon's tear". The incompatibility between her energy and the tear resulted in Strawbrry having a much different appearance compared to other rabbits and angels; she has considerably long ears, fangs which signify her carnivorous nature, and her fur and wings are dark. Her nature is also vastly different compared to other angels. Moody, prone to violent outbursts and foul language, this bunny was far from what many would consider an angel. Her skills in battle and interest in history resulted in her being sorted into the "Power" sphere of the angelic hierarchy.

After falling in love with and starting a relationship with another angel, Toby, the two would seek to end the corruption that had become rampant in Heaven but both were deemed heretics and deemed fallen. Strawbrry received a harsher punishment, having her memories temporarily sealed before being banished to heaven with Toby, although the two would become separated.

Strawbrry had a number of experiences on Earth, from being involved in a gang to participating in street fights. However, Toby found her again and her memories slowly began to resurface. After learning of a considerable threat to the planet, the two would begin training in the lost art known as "Bunny Martial Arts", rejecting the idea of returning to Heaven and instead deciding to protect the lives on Earth.

Strawbrry is rather tomboyish, being rather uncomfortable with things she finds to be "girly". She enjoys exercise, martial arts, video games, dancing and exploring. Being a rather competitive rabbit, she enjoys winning at any kind of contest. Her friend's often tease her about her height, which frustrates her.

Her favorite meals include steak and hamburgers and she has a fondness for beer and marijuana (which calms her down and reduces her violent outbursts)

She's quick to anger and is rather impatient and, when pushed over the limit, she goes into a frenzy and takes on monster-like form, capable of limitless destruction.

Universe Two:

In this alternate timeline, Strawbrry is the queen of all rabbits in a yet to be named planet, ruling over the Bunny Queendom. After being banished from Heaven, she explores the planet she had been banished to, encountering a small colony of rabbits who were few in number. Deciding they needed a proper leader and home, Strawbrry would travel to a nearby castle, taking down the undead that resided there and claiming it, marking the start of the Bunny Queendom. As she began to expand and conquer other territories, her subjects would grow in number, even expanding to other species!

However, there exists many who seek to take down the Bunny Queen.. will the Bunny Queen lead her people to prosperity? Or, perhaps, ruin...?