Name	Hitachīn Hikaru
Age	15
Birthday	June 9th
Star Sign	Gemini, the Twins
Gender	Male
Height	5'9" (Anime)
Blood Type	B
Ethnicity	Asian
Nationality	Japanese
Personal Status
Class	Class 1-A
Club	Ouran Host Club
School	Ouran Academy
Occupation	1st-year High School student
Relatives	Kaoru Hitachiin (Twin Younger Brother) Yuzuha Hitachiin (Mother) Mr. Hitachiin (Father) Ageha Hitachiin (Younger Sister) Kazuha Hitachiin (Grandmother)

 

Background

As children, Hikaru and Kaoru are inseparable and dislike everyone with the exception of their personal maid, who they adore.  The cunning woman promises to play the "Which One is Hikaru? Game" with them until she gets it right because the twin toddlers say they'll give the combination of a family safe it to her when she wins. During the night, the alarm sounds and the twins discover their playmate heading down a ladder with the family's riches.  She's broken open their piggy bank to access the slip on which the combination is written and broken her promise to them, as well.  Disappointed, they ask why and she replies that she simply can't tell them apart and perhaps no one ever will, implying that unless a person can identify them as unique individuals, that person is untrustworthy.  This comment becomes a self-fulfilling mantra for them, keeping them isolated and stunted in social skills.

Because of their long-standing co-dependency, the twins lack the ability to interact properly with others. During grade school, this manifests itself in their refusal to interact with anyone unless that person can tell the two apart; however, no one can. Their disappointment and hurt is kept inside, furthering their isolation and perverting their psyches until Tamaki Suoh invites them to join the Host Club. Though uninterested, they ask him to play their who-is-who game to amuse themselves; Tamaki accepts on the condition that if he wins, they must join his club. Though he initially loses and is ridiculed by the twins who've discovered that he's the illegitimate son of Ouran's Chairman of the Board, Tamaki persists.  He wins with intuition, which the twins refute; but his  willingness to accept them as they are, their faults as admissible as their assets, impress them as nothing had since the day their maid declared their symmetry something to be feared and they agree to give the Host Club a chance.