Elena

Elena is a S-ranked Mercenary and a teacher at Mikodo High School. She is also one of the best mercenary in the world, but is not yet on the same level as the 13 Master Ranks. She was trained by Morito Hayama, who is one of the Master Ranks. She is one of Morito's most trusted students so much so when he was dying he told her to take his place and become a Master Ranked. She also seems to have a crush on her master, but will not admit it to her self or to him. Of all Morito's Students she is by far the most powerful and most loyal.