Rain Hasumi (蓮実レイン) is a hybrid Liberator and Extar, and her partner is Lady J. She and Lady J are former agents of the Nafrece Intelligence Agency.
Rain is a tall, young woman with shoulder length blond hair with a red fringe on the left side of her face. She wears sunglasses quite often. She is usually seen in a sexy black leather biker suit that exposes her cleavage, her shoulders, and her backside. She also wears black boots that go up to her calves. Around her neck is a small cross necklace. Her boobs stand out when she has sex with Lady J and she kisses her.
Rain is shown to be very daring and nonchalant in the overall course of the series. She is almost always seen with her lover and partner, Lady J. They are usually on the same page, more so in battle. She has a strong relationship with her and they often move in sync as they are Liberator/Extar hybrids, usually fighting together and sometimes partnering up with other inhabitants of the island. She developed the Arm virus early in her life so she was used for her ability and after sometime in her life she has developed a strong desire for freedom in her choices. In the more serious moments of the series, Rain is either in Extar mode being used for her Disarmament Buster by her partner or is playing the role of Liberator with her partner to escape or fight against their foes. She is very observant, just like her partner and when at a disadvantage their partnership shines through all the more when they do all they can to be on the winning side of a battle.
- Whilst being a Liberator, she is also an Extar or "arm", known as hybrids.
- She becomes a powerful cross-shaped gun when in extar form.
- Due to her strong abilities and powerful bond, she and Lady J are able to combine into one arm known as their Final Form.
- It's possible both she and Lady J are easily able to switch to and from their Liberator and Exter forms without the others aid.
- "That's just how strong the bond is between J and I!" (Ep. 4)