|Ultimate Legend Kang Hae Hyo|
|Author||Choi Byung Yeol|
|Illustrator||Choi Byung Yeol|
Ultimate Legend Kang Hae Hyo is a webtoon by Choi Byung Yeol.
- Kang Hae Hyo (The Grim Reaper, Hell's Lion): He starts out as a bullied student and believes that he was brought to the island by mistake. However, he has memories of being a different person. He found out that he didn't lose his memories from a truck accident in chapter 40. He remembers where he came from and why he is so strong in chapter 54. Something big is behind his memory loss and it starts with the principal.
- Kang Hae Ri (Kang Hae Hyo): She was the leader of a gang called the "3 Stars" and shares the same name as Kang Hae Hyo, The Grim Reaper. Her father wanted a son, so when she was in her mother's womb, he named her Kang Hae Hyo. Since the boy turned out to be a daughter, the father raised her as a son. Her male name is Kang Hae Hyo. Her female name is Kang Hae Ri.
- Ultimate Legend: Kang Hae Hyo at Naver. (Korean)