This is a Korean name; the family name is Kum.
Kum Haehyun (琴 慧弦) is a character in the Guilty Gear series. She is the decendant of a family of Tuners, who are known to have great knowledge of Ki energy.
She controls a robot with the form of an imposing elderly master known as Kum Jonryoku.
After Haehyun's predecessor passed on, the Kum family became at odds with more distant branches of the family, all after the inheritance. With no successor to the head of the family, Haehyun's mother worked to protect the reputation of the Kum name, sacrificing her body to do it.
Soon after she resolved the conflict with the Kum house, she gave birth to Haehyun before dying and thus she became the current head of the Kum family.
Guilty Gear Xrd -REVELATOR-Edit
Haehyun is called by Johnny requesting her to meet him and Faust in the Colony to find a cure for May and the Japanese. Sadly she is unable to do it due to the excessive amount of ki flow provoked by the Information Flares.
After a talk with Jam, May came to her alongside Baiken with a solution, Baiken took Haehyun to a tree infused with the ki of all of her ancestors during generations. Thanks to the massive amount of ki in the tree, Haehyun has the energy that she needed to stop the Information Flares and thus cure the illness of the Japanese; but for that to happen, the source of this phenomena needed to be stopped and that was Justice.
After Sol succeeds in merging Jack-O' with Justice, Haehyun could stop the Information Flares and save the Japanese.
Powers and AbilitesEdit
Haehyun has a large knowledge in martial arts that shows within her humanoid cyborg Jun Ryu Kum. She also has the power of "Tuning"; a rare bloodline ability passed through generations in the Kum family that allows her to use her ki to read and control the flow of ki in the world, allowing her to detect and heal irregularities in living beings, as well as to strengthen bodies (as it can be seen in her attacks) and weaken them (as it can be seen in her Instant Kill).
She can also create balls of ki called "tuning balls" which she can control at will thanks to her tuning.
- The Tuner - Guilty Gear Xrd