Call Me The Goddess Of Vengeance is a Manga/Manhwa/Manhua in (English/Raw) language, Manhua 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 invincible female "President" is in a period of rising career, but she has found out that she is terminally ill. In order to heal herself, she became the agent of the Vengeance Goddess, went to different worlds, to avenge the heroines who died injustice......