The Assassination Sisters and One Weak Brother

Jlyne (Jaylin), Olivia, and Morgan are sisters and assassinate people for money. They all grew up knowing all about the rich and assassins. Nothing about love. Jlyne doesn't like smiling, Olivia doesn't like surprises, and Morgan doesn't like to get bossed around none other than family orders. Their mom is hard on them, and their brother, the person the three sisters hate, Joseph, is most likely to be the head of the family, even though he is weaker than Jlyne, Morgan, and Olivia, and is also a scaredy-cat. They often bully him because of his strengh. The three sisters also share the same strength, beauty, and fashion sense: anything black or dark grey.