Hikaru Hitachiin

Hikaru is one of the main characters from the Ouran High School Host Club anime and manga.

Hikaru is the elder of the Hitachiin twins and is in Class 1-A with his younger twin, Kaoru, and fellow Host Club member, Haruhi Fujioka. Although he is considered the "leader twin," he is less mature than Kaoru when it comes to managing his emotions and dealing with others.

In the AWA fics, Hikaru is a student at the AWA Academy.

Appearance
When not seen in the typical Ouran Academy uniform, Hikaru prefers to wear outlandish designer clothing, but still dresses a bit different than Kaoru. His short and somewhat-messy hair is depicted as auburn. At a point in the manga, he dyes his hair dark brown to differentiate himself from his twin, Kaoru. In the anime, he is shown to dye his hair pink in order to differentiate himself from his twin after a fight, and later alters it to powder blue to confuse the female customers in the Host Club (though Haruhi saw through their trickery).

Hikaru tends to part his hair to the right, while Karou parts his to the left. Although they tell Tamaki that they switch it on a daily basis, the parting of their hair is generally consistent, unless they are deliberately attempting to confuse others. Both twins possess amber-colored eyes, a thin face and pale skin. In many cases, the older twin stands on the right side, which Hikaru does.

Personality
Hikaru and his younger twin, Kaoru, are first introduced when Haruhi stumbles upon the Host Club. As the classmates of Haruhi, both Hitachiins are major rivals to Tamaki's romantic interest for the female Host, which causes a humorous amount of friction between the President and the twins. It has been shown that although their looks are identical, Hikaru's character differs greatly from that of Kaoru's, and he is more dependent on his brother than the reverse.

The Hitachiin twins are categorized as the "Little Devil" types and as such, are perceived as mischievous troublemakers (though not malevolent). Their selling point in the Host Club is their "Forbidden Brotherly Love" package, which has them acting out twincestuous schticks for the entertainment of their female customers. A common game they love to play is the "Which One Is Hikaru? Game", which involves the twins disguising their hair with identical caps and then asking people to guess which one is Hikaru. Only Haruhi gets it correct, with logical reasons for her doing so. Her ability to see them as unique individuals is one of the reasons they both develop romantic feelings for her, which results in the twins taking her out on separate dates (though the anime only shows Hikaru's).

Because of his immaturity in dealing with others, Hikaru is childishly over-possessive of each club member. An example of this occurs during Ep 16 - Operation Haruhi and Hikaru's First Date! wherein Hikaru becomes jealous of Haruhi's childhood friend, Arai. Haruhi slaps him when he becomes rude, and he runs away with Kaoru chasing after. Another example of this is in the manga, when Hikaru becomes annoyed at Haruhi's constant chatter about Tamaki and his family situation. He storms off yet again, with Kaoru following once more. In the end, it is Kaoru who helps Hikaru understand his romantic feelings for Haruhi despite his own.

Hikaru is born under the star-sign of Gemini, the Twins. The positive traits of this sign are adaptability, versatility, enthusiasm, eloquence, wit and intellectualism; the negative traits being inconsistency, superficiality, indecisiveness, lack of focus and nervousness. There is speculation about whether Hikaru and Kaoru each possess all traits or if the traits are split between them to create a "good" twin and an "evil" twin.

Trivia

 * Hikaru along with the rest of the Host Club are the first characters from Ouran High School Host Club to be introduced in the AWA fics.


 * The manga and anime depict Hikaru and Kaoru's relationship as two plants growing from a single seed. Later, in recognition of their increasing individuation, two huge flowers of identical type bloom in different colors.
 * Hikaru often turns to Mori for advice after an upset with Kaoru, whereas his twin seeks comfort from Honey.
 * Hikaru's ringtone is the closing theme to the anime, "Shissou" aka "Sprint".
 * The Hitachiin twins share the same birthday as the Kurusu twins (from Uta no Prince-Sama


 * Like the other Hosts, Hikaru's phone matches his rose color, which is light blue.


 * After Hikaru dyes his hair in the manga, the visible differences between the twins increase. Hikaru starts to wear clothing with bolder patterns while Kaoru opts for more classic outfits and, in the chapter title pages, Hikaru is usually drawn with angry eyebrows and an open mouth while Kaoru maintains a calm smile.
 * Both Hikaru and Kaoru are right-handed.