Hero x Demon King x Villain summary:
The three arts of swordsmanship are all that swordsmen seek to master in this world. Eager to learn, some will take dangerous paths, others will trick, and some will even kill. Serena R. Lavail, a possible hero, is one of those who seek to master the arts to save her family. To do so, she embarks on a mission that starts right in the enemy's lair. There she meets the villain, Kane S. Ronald, who has a mysterious past and a mysterious lost skill. Heroes, villains, foes, and friends... what will be the fate of these two?