The Raven S2, E1: Unknown to Tutu, Fakir, and Mytho, Princess Kraehe put crow's blood into Mytho's heart shard of love, that will turn him into a person who loves crows and will marry only Princess Krakhe.
Darkness hid the pieces of her beloved’s shattered heart, and time is running out for Princess Tutu to find them. Her dream of becoming a human girl has come true. However, peril lurks in the unseen shadows. Using the power of an enchanted amulet, she must unravel a dark and twisted mystery to keep her Prince and herself alive.