Able to alternate her own gender, and others. Ontop of her Genjutsu skills, she is dangerous, thus being the Akatsuki leader. She appears as a male while leading them however!
-----Character Application-----
Full Name: Hikaru Ochida
Manditory Picture: Male form 
Her real FEMALE form!
Affiliation: Akatsuki (Leader)
Rank: Kage Level
Aliases/Nicknames (if any): Hika, Karu, Hida, Ochida- San and/or Sama.
Preferred name: As a Female - Hika As a male- Ochida-sama
Age: In reality, 17 but appears in mid twenties as a male, and young 14 as a female.
Gender: She was born a female, but her kekkei genkai allows her to be either.
Sexual Orientation: She only blushes for a man.
Height: Female- 4'10 Male- 5'11''
Weight: Female- 79lbs Male-120lbs
Build:
Female- Frail, Slender, boyish.
Male- Strong, Sturdy, Athletic
Eyes: Dark red irises.
Hair: As both genders her hair is a beautiful shade of black. As a female her hair reaches about two inches lower than her chin, and as a male her hair reaches to almost her lower back.
Tattos or Scars: None.
Male- Cold, Distant, Sarcastic, yet secretly protective. He doesn't show it, but he wants to protect everyone in the Akatsuki. Alway training alone.
Female- Carefree, Aloof, Lazy, yet really energetic. Hates training.
Kunai x 30
Shuriken x 20
Senbon x 100
Exploding notes x 50
Sai x 2
Special Abilities/Skills: Has the ability to completely alter her gender, permenently if she wished.
Kekkei Genkai(No more than one): Genokai (The ability to change one's appearance and gender, being hit does not transform them back however, and they can permenently switch their gender, but it does a toll on the user's body. The same Kekkei genkai also allows her to alter other people, matched with her deadly genjutsu, she is a force not many will stand up to.
Hobbies:
Female- Hide and seek, playing, hanging out
Male- Training, Thinking, Art.
Serious Problems/Flaws/Addictions/Disorders/Disabilities: She sometimes wonders which gender she plays better, and it messes with her mind a lot. She knows no one in the Akatsuki would take her seriously as the young girl she really is.
Place of Birth: Konoha
Now lives: Akatsuki
Relationship History: She's never dated as a male or a female, her age is appropriate for her to think about guys, which she does, but she can't regularly date while leading the Akatsuki in fear of someone finding out her secret of being Hikaru the leader of the akatsuki, and Hikaru a traveling Genin of Konoha.
Family: She killed them all in a terrible accident, regrets it often.
Ideal Partner (Name their traits): Persistent, Sarcastic, Stubborn, Mysterious, Mature.
Other Remarks: Really confusing, reference back as much as you need to xD