MapleStory Database › Items › Use items › Character Modification › Mastery Book › Demon Slayer's Mystery Mastery Book
Demon Slayer's Mystery Mastery Book
Demon Slayer's Mystery Mastery Book is a mastery book (character modification) in GMS v271. Sells to NPCs for 1 mesos.
Produces one random Mastery Book meant for the Demon Slayer when double-clicked.