Solty Rei, this is a prime example of how many great anime titles float just below the radar. SR revolves around a green haired girl who you can tell early on is not quite like the rest of us, she first appears as an obscure cloaked girl who gets attacked by an elite task force called PROCEED, after quickly defeating them she jumps down into the city below.
Later she inadvertently saves the life of Roy Revant, a violent bounty hunter who was once a cop who tore up the criminal underworld searching for his missing daughter, later he reluctantly adopts the mysterious girl naming her Solty. The show depicts the misadventures Solty finds herself in and the growing bond between her and Roy in a beautiful and heartfelt way. The series also has exquisite action sequences and warm humor mixed in evenly