Vesture Kloff Di Laufen

Vestia Croft Di Lofan is a former adamantite-ranked adventurer, and also the mentor of Gazef Stronoff.

Background
Lofan was an accomplished adventurer in his time. After he retired, Lofan opened an exclusive sword school for pupils he chose himself. He personally trained the future Warrior-Captain through a hellish regimen of sword training and lectures.

Abilities
So far, it was revealed that Lofan is a highly skilled martial artist and swordsman. Lofan himself has developed a stronger technique that surpass Sixfold Slash of Light , however, he was unable to utilize it to its full potential due to his advanced age,which he then taught it to Gazef Stronoff.

Gazef Stronoff
If Gazef hadn't met the retired adventurer, his fate would have been been to become a mercenary. It was Lofan who dragged him into his school and taught him all the skills of the sword, leading him to become the Kingdom's strongest warrior.