Her function is to guard the Swamp of Peace, a sacred relic that retains the harmony of the MU earth, avoiding it from succumbing to the malevolence that lurks outside of. The famous monster Medusa has dominated the Swamp of Calmness because historical situations. First introduced in Period five https://alexishfvpj.suomiblog.com/detailed-notes-on-boss-medusa-mu-online-51433152