Assassin X Revenge

( warning⚠️ it's an revenge novel not a fairy tail So be prepared before reading it, some of the stuff might not be suitable for some people. So read at your own risk ) Ruby Kartz, an 14 year old girl is being treated very badly at the dojo she grew up on. Beaten till she faints, Starved for days, used as a puching bag by the wife of the dojo master and his 2 sons and worked till death. One of the student help her escape this hell she was living in. She grew up to become an successful assassin and comes back for the revenge ( I'm not very good at writing synopsis TvT ) (no chapters on weekends)