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.

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.