Raised in the same orphanage, Fuuka and Rinne were once close friends but parted company after a quarrel that ended with Rinne overwhelming Fuuka with her martial art skills. Fuuka lived a life of poverty after leaving the orphanage. An accidental encounter with renowned martial arts champion Einhald Stratos revealed Fuuka's hidden talent for fighting. Einhald offered Fuuka a job and coaching, encouraging her to meet up with Rinne again—in a ring.(Source: ANN)