She is a young 13 year-old girl (14 after episode 4), abandoned by her mother and a victim of sexual abuse by her stepfather. She has run away from home and is homeless at the start of the series, subsisting on bread crusts she is given at a local bakery under the pretence that they are for the small puppy that accompanies her. She found and named the puppy "Wanta." She ends up living with Kouta and Yuka as her legal guardians. Mayu befriends Nana and tries to take her under her wing. (Source: MyAnimeList)
Elfen Lied
Lucy is a special breed of human referred to as "Diclonius," born with a short pair of horns and invisible telekinetic hands that lands her as a victim of inhumane scientific experimentation by the government. However, once circumstances present her an opportunity to escape, Lucy, corrupted by the confinement and torture, unleashes a torrent of bloodshed as she escapes her captors. During her breakout, she receives a crippling head injury that leaves her with a split personality: someone with the mentality of a harmless child possessing limited speech capacity. In this state of instability, she stumbles upon two college students, Kouta and his cousin Yuka, who unknowingly take an injured fugitive into their care, unaware of her murderous tendencies. This act of kindness will change their lives, as they soon find themselves dragged into the shadowy world of government secrecy and conspiracy.
