Marked By Steel

In this world their are a select few people who can aquire marks these marks give people elemental abilities ranging from a simple fire to something more unique like bone or body manipulation.
In the main charcter Yamaokas kingdom marks are banned from use unless you are the king or Yamaokas father but him and his brother Yūma wake up with marks Yamaoka with the mark of metal and Yūma with the mark of spider.
After being accused of murder and power usage they are chased out of thier home and almost killed but they escape and now they must free the world from an evil man midas the master of marks.