Rainbow and Black Vol. 1 by Eri Takenashi
College student Shirahoshi Kuroe feels like she's living in black and white, and she longs for more excitement... until a small, rainbow, incredibly weird bird-thing brings colour to her life. Now they live together. Is this creature just a pet, or is it more like a roommate? Penned by Eri Takenashi, a prolific Japanese artist best known for the manga (and anime) Kannagi, Kanpachi, and Take-Moon/Carnival Phantasm, this unique manga series is sure to move right into your heart.