AboutName: Ikuto Tsukiyomi (月詠イクト)
Birthday: December 1
Blood type: AB
Height: 178cm (5 feet, 10 inches)
Weight: 50kg (110 lbs)
Ikuto is a teenage boy contracted by Easter to find the Embryo. He often helps Amu Hinamori even though he works for the Easter Company. Ikuto actually despises Easter and tries to wrench himself free from them by trying to find the Embryo to grant his own wish. By chapter 43, he had left Easter Company in search of his father. In the third season of the anime, he is already traveling the world to search for his father and therefore is absent from the series.
He is in possession of the Dumpty Key. It pairs with Amu's Humpty Lock, which comes together in chapter 36/37.
Like his father, Ikuto is a skilled violinist. His mother, upon marrying someone else after they found her husband's violin in a foreign country and believing that he would not come back, bound her children into working for Easter.
Ikuto is in love with Amu Hinamori, confessing it in chapters 28 and saying it in 43 of the manga. He also kissed her on the cheek (REALLY close to her lips) before he took off in chapter 43. He confessed to her in the anime the same time Tadase did, but Amu thought it was a joke.
In Chapter 28 Ikuto told Amu to grow up faster because he wanted Amu to catch up to him.
Ikuto's personality is aloof, stoic and a little naughty, much like an alley cat. He can also be sweet and kind. He likes teasing people, especially Amu and Tadase.
During a character change, Ikuto gains a pair of cat ears and a tail, and is bestowed with reflexes and moves that only come from a cat. He can also form virtual cat claws from his hands, created to form the attack Phantom Claw, something he cannot do during a transformation.
Ikuto can transform with Yoru into Black Lynx (ブラック リンクス). This represents his desire to be as free as a stray cat. Black Lynx first appears in Chapter 7 of the manga and Episode 13 of the anime, where he "saves" Amu from an X Egg only to break it.
Appearance: When transformed, Ikuto grows cat ears and a cat tail and wears a short navy top with long navy pants. He also wears a glove on his right hand with metal claws.
Abilities: Ikuto gains increased cat-like reflexes and senses. He can use his glove to attack with Slash Claw (スラッシュ クロウ).
A plan executed by Kazuomi Hoshina involved using Ikuto's X Egg energy influenced violin to control him. The result was Ikuto having been manipulated to become Death Rebel (デス レーベル). This represents the trauma and darkness he holds in his heart. Ikuto has no memory of his actions as Death Rebel. He first becomes Death Rebel in Chapter 31 of the manga and Episode 75 of the anime.
Appearance: In this form, Ikuto grows cat ears and wears a black suit and a black tie. He also sports an armband on his left arm, similar to the armband Amu wears with her school uniform.
Abilities: In this form, he is able to play the violin to take hearts' eggs and create material projections. His violin can turn into a Death Scythe, with which he attacks using Dark Night Storm (ダークナイト ストーム).
In Chapter 38 of the manga and Episode 100 of the anime, when Amu completely opens her heart to embrace Ikuto, the two of them transform together. While Amu becomes Amulet Fortune, Ikuto becomes the pirate Seven Seas Treasure (セブンシーズ トレジャー), which represents his freedom to do what he wants. This is most likely only a temporary transformation.
In this form, he wears a blue pirate outfit and an eyepatch, but keeps his cat ears. On the hat is a skull and crossbone symbol with a cat's head replacing the skull.