Kimiko is a superhuman character in the "The Boys" series, who has enhanced physical abilities, regenerative powers, and is an expert in weaponry and hand-in-hand combat, making her a formidable fighter. Due to her history, she has difficulty speaking and, as a result, uses sign language to communicate. She is also mute. Despite her fearsome abilities, she is known for having a vulnerable side and being very protective of people who care about her.