Leone

Leone is one of the older members of the assassination group, Night Raid. She has a very relaxed and cheerful personality, tends to display a lack of ladylike manners, such as shoving Tatsumi into her breasts, putting her feet on the table, or consuming large amounts of Sake. She serves as a sort of big sister figure to Tatsumi and younger members in Night Raid, often referring to herself as "onee-san". Despite the morally dodgy nature she can sometimes display, Leone is not one to tolerate injustice, and can be especially vicious to those who commit the most vile acts. She excels at gathering information and exercising calm judgement when necessary.

Bio
Leone grew up in the slums of the Capital where she has worked in a massage parlor ever since childhood. She was apparently scouted by the Revolutionary Army after saving some slum children from a group nobles who were abusing them for sport. She was the first character to meet Tatsumi in the beginning of the story, offering to get him into the Imperial Army in exchange for a favor. Taking advantage of his naivety at the outset, she makes him treat her to dinner and drinks, and then swindles him out of his money. Later, she reappears and is revealed to be a member of Night Raid. After the confrontation at Aria's mansion is concluded, she recognizes Tatsumi's skill and tells him from now on he'll be a member of Night Raid, serving as a way of paying him back for her earlier conning.

Still devastated over the loss his beloved childhood friends Sayo and Ieyasu, Leone shows up to cheer him up and to find out if he thought about joining them, Tatsumi was hesitant to accept her offer to join at first. She shows him around the hide-out and introduces him to the other members of Night Raid: Schere, Mein, Braht, Rabac, Akame and then Boss. When she mets Boss, she tells her that she wants to recommend him as a new member of their team. Boss asks does he show promise and Leone replies that he does.

She is placed with Tatsumi and sent to the Capital to complete their mission. He realizes that she is very popular in her home distract. The two were separated when a gang of men she she had also swindled out of their money came after her, but reunited on time to start their assignment. They enter the targeted building and witness a gang kill a drugged prostitute, a girl who Leone knew from the streets. Together, they eliminted the gangsters in the building. When they finished their mission, Tatsumi asked her what will happen to those girls, she replies that it isn't their problem, but then tells him there is a doctor in the slums who will look after them if she asks him to. Tatsumi notes her kindness with a smile and then she "marks him" as hers by licking his ear.

They are once again sent on another mission. Their target was the Kobores Brothers under the orders of the Revoluntionary Army HQ. The two complete their mission, slaughtering the brothers, and as they leave, Tatsumi hears a child's voice calling for his father, who was one of the brothers. Angry at himself, Tatsumi leaves as fast as he could. Next morning, Tatsumi attempts to clean his bloodstain sword while thinking about how the boy only saw the Kobore brother as a good father, instead of the villian that he was. Leone shows up and tells him that he could scrub the sword for his entire life, but the stain will never fade. While she tries to cheer him up and tell him that she was worried about him because he is too kind, he asks her where she got her teigu and why she fights the Empire. She replies she got her Teigu from a merchant for a good deal who didn't realize how good of a fine object he had on him and she takes great joy in killing people who abuse their power on the weak and helpless. While he finds that her reason gives him strength, he is still troubled. She also told him yet again that moping around isn't going to bring back the person you lost.

Later, she is assigned the task of spying on the Imperial general, Esdese. Leone hides in the air vents above the room Esdese was resting in, planning to kill her if the chance arises, but is scared off by a particularly violent display of killing intent from the general, who noticed the presence of someone hidden nearby.

During the attack on Night Raid's hideout by Team Stylish, she is hit in the face with a throwing dagger, only later to show up and kill the Stylish-minion who threw it with a single blow, revealing that her Teigu increases her natural regeneration.

Equipment and Skills
Leone possesses a Teigu in the form of a belt, named "Lionelle". When activated, it enhances her speed, reflexes, strength, and regeneration, as well as giving her animal-like characteristics. She is also a skilled spy and manipulator, occasionally using her skills to swindle people out of their money.

Relationships
Tatsumi: She acts as an older sister to him, as he calls her "Nee-san". Leone enjoys working with Tatsumi and seems to finds great joy in his company. She is also shown to worry about him as he is "Too kind". As the story progresses, she seems to develop some romantic feelings for Tatsumi, often shoving his face into her breasts, and even saying that she will claim him as her man when he becomes a little older. The two can laugh at and with each other the most among Night Raid. They have closest relationship among the group.

Akame: The two appear to be friends, but their relationship is sometimes used for comical effect, seen when Leone punches her when she comments on the difference in their weight.

Rabac: He is often caught trying to peep on Leone while she is bathing. Most of his attempts end with him getting beaten up by Leone herself.

Trivia

 * It seems that using Lionelle has affected some of her personality traits, even when it is not activated. For example, she literally marks Tatsumi as hers, showing territoriality.
 * Leone herself says that she loves to use sneak attacks but hates being a victim of them.