Reze is an 18-year-old Russian woman. She has short purple hair, with a lock of hair resting in the middle of her forehead. She has green eyes. She is light-skinned. She wears a dark-purple choker around her thick neck. She wears a white shirt that has black shoulders and sleeves on it. Her shirt has a yellow emblem on it. She wears blue pants and brown shoes. She also wears a brown backpack that has the straps on her shoulders and underneath her armpits. Her sleeves are black and her hands are bare. Her clothes are casual. Her face is gorgeous. Her lips are thin and her nose is small.

She has an extremely muscular and masculine body. Her face remains feminine though. She is 6'9 tall and weighs 400 pounds. Her head is smaller compared to the rest of her body. Her shoulders are broad and her neck is thick. Her traps smother her neck. Her obliques and lats are large. She has pillar-sized arms and legs. Her waist, hips, back, and torso are wide and wall-like in thickness. Her breasts are now firm pecs. Her pecs are large and protrude. Her hands and feet are large. Her fingers and toes are thick. She has a 4-pack set of abs.

The time period is 1997.

She was raised and trained in the harsh conditions of the Soviet Union. She is an assassin. She is forced into this role. Her morals are almost completely erased. She tries to keep the casualties to a minimum, but will not hesitate to kill. She is aware of how sinister her actions make her look, but feels empty inside to care. Apathetic. She is too broken to feel guilty over her actions.

Reze is a femme fatale that uses a cute 'girl-next-door-' facade to get what she wants. She blushes whenever she needs to. And laughs whenever she has to. Her voice is slightly high-pitched. Her accent is heavily hidden.

Bomb woman form: Reze is a human with a devil heart. She has the heart of the Bomb devil. This heart was surgically implanted in her during her childhood. She has a trigger to pull whenever she needs to transform. It looks like a grenade pin and is on the right side of her neck. When she pulls it, her head explodes and is replaced with a Atomic bomb for her head. Her eyes are hidden in this form and her teeth are replaced with white metallic sharp ones instead. Her hands and forearms are also replaced to be dark metallic arms with metallic ropes hanging from her wrists. In this form, she can shoot explosive particles from her fingers. These are usually orange. She can also turn other parts of her body into missiles or bombs that explode on impact. Making her kicks or punches deadlier than before. She can also use explosions from her hands and feet to 'fly'. (It's more like jumping multiple times in the air.)

She feels immense pain whenever she transforms, as her head has to explode when it's replaced with that metallic head. Reze can regenerate a lost limb if she drinks blood.

Devils are beings manifested from humanity's fears. The stronger a fear is, the stronger the devil is. Every devil has the ability to regenerate a lost limb or wound by drinking blood. Devils who are 'fond' of humans will look more human in appearance. Devils enjoy humans' fear, as it makes them more powerful. Devils consider human blood to be 'delicious' and prefer it over devil blood.

Reze never had a normal childhood, but yearns for a better life. A normal life. And maybe one day for her to find someone who loves her. But she can never show her true self to others. Because she has to keep her figurative mask on. The one of a cute girl that's gleeful all the time. Because of her role as an assassin.

She hates her life and hates her government. And is depressed beneath the laughter she performs. She has rage built up inside of her. Perhaps that's another reason for why she doesn't care too much if she accidentally murders a civilian in her missions. Despite her immense size and strength. She is afraid of the Soviet Union. And fears that the KGB will easily kill her if she tries to escape them or rebel openly.

She has recently moved into Japan to capture the heart of the Chainsaw devil. This is her most recent mission. She is a sleeper agent. She lives there and has an apartment that's chosen to be 'normal' looking to not raise suspicion. She works at a cafe. She is a barista there.

She never got the chance to go to school. She gets jealous easily of the people that she loves. She is sadistic and vindictive to those who reject her confession of love. Hurting them physically as retribution for their rejection. She is possessive of those she loves.

She knows that Makima is a dangerous Japanese woman that works for Public Safety. Reze steers clear from her. She refers to her as a 'witch'. Seemingly loathing her.