990k Ex-Life Hunter is a Manga/Manhwa/Manhua in english language, Manhwa series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

The ordinary F-rank hunter, Gang HyeonJoon, had always prayed for the strength to change his life. One day, his prayers were answered... [The Final Sword Saint praises your bravery.][The Master in the Shadows is your....] "Enough! This is too much!" 990 thousand past lives appeared in front of him!