Lucyna Kushinada more commonly known as just Lucy, is the deuteragonist of Cyberpunk: Edgerunners. Lucy made her fighting game debut as a guest character in Guilty Gear -STRIVE- Season 4. Lucy was born to Japanese 4th Corporate War veteran Takeshi Kushinada and Polish netrunner Shimmer in Warsaw, Poland. Her father had been assigned to the Arasaka garrison of Warsaw after the end of the war, while Lucy's mother was a member of 404 Squadron, a Polish gang of netrunners. They met and fell in love, with Shimmer leaving behind her clandestine life to start a family with Takeshi. Lucy grew up in luxury and got the best education, living in a spacious villa inside a gated Arasaka community on the northeastern border of the city.

When she was seven, Lucy hacked into Takeshi's computer and discovered information about his actions during the war. She had always seen his father as a wonderful parent, but knowing the horrible things he had done shocked her to the core. This led to her rebelling, often running away from home, and spending more time on the Net. Progressively, Lucy's started to show an affinity for netrunning, something her father noticed. 

After trying to escape from home one more time, Takeshi decided to apprise Lucy's talent, forcing her to take a skills test at Arasaka. Soon after, she was assigned alongside 12 other children to the corporation's netrunning outfit at an undisclosed Arasaka facility. Being led on by the dream of "serving the world's most powerful megacorp" got her and the others through the toughest days and training. 

When their training concluded, they were moved underground to participate in deep dives into the pre-DataKrash Net, as Arasaka sent them looking for knowledge that was lost. As they dove into the Net, they were susceptible to old world Demons and rogue AIs. The children were picked off one by one, and it didn't take long until only a handful of them were left. After realizing that they could pursue other dreams, instead of being enslaved by the corporation, the remaining children, including Lucy, used their netrunning skills to overwhelm the Arasaka staff and run away. While making their escape, most of the children were shot down one-by-one, and only Lucy managed to survive.

After escaping, Lucy woke up in a junkyard, not planning to stay long. Fearing how her father would react, she started traveling across Europe instead of going home. Even though she would try to settle down several times, she would always end up moving again due to her netrunning mother — who had rejoined 404 Squadron — trying to track her down. Uncertain of Shimmer's motivations, Lucy kept on moving until she eventually crossed the ocean to New United States of America, traveling through the states until she ended up in Night City. Deciding there was no place on Earth safe enough for her, Lucy promised to herself she would raise enough funds to move to Luna.

While in Night City, Lucy began doing petty thefts, and on very rare occasions more lucrative robberies. For a time, this was her modus operandi, until she met Kiwi, a fellow netrunner who decided to mentor Lucy and gently fold her into Maine's mercenary crew of edgerunners.