What is sss-class suicide hunter?

SSS-Class Suicide Hunter is a Korean web novel series written by Shin Noah. The novel has been published on Munpia, a Korean novel platform, since 2018. It follows the story of Kim Woojin, a former SSS-class hunter who committed suicide and was reincarnated in another world. He now receives quests and missions to hunt down other reincarnated individuals who have become monsters. The novel combines elements of action, adventure, fantasy, and psychological thriller. The series has gained popularity among Korean readers and has a high rating on various online platforms. It has also been adapted into a webtoon by Studio ADA and was launched on Naver in 2019.