Vesture Kloff Di Laufen

Vesture Kloff Di Laufen (ヴェスチャー・クロフ・ディ・ローファン) is a former adamantite-ranked adventurer and the mentor of Gazef Stronoff.

Background
Vesture was an accomplished adventurer in his time. Thirty years ago, he was part of an adamantite adventurer team that braved the depths of the northern Tob Forests to retrieve a rare herb from Zy'tl Q'ae with two mythril adventurer team.

After he retired, Vesture established a swordsmanship school for pupils he chose himself. He personally trained the future Warrior-Captain through a hellish regimen of sword training and lectures.

The Dark Warrior Arc
Vesture was mentioned by Clementine to be one of the few people in the Re-Estize Kingdom whom could put up a good fight against her.

The Sealed Evil Tree Arc
Vesture's name was mentioned during the conversation between Momon and Pinison Pol Perlia in the northern Tob Forest.

The Magic Caster of Destroy Arc
At the war conference in the Re-Estize Kingdom, Vesture's name was mentioned as one of the retired adamantite adventurers that exist in the capital. Later, his history is further explained by Brain Unglaus to Climb during Gazef Stronoff's duel with Ainz Ooal Gown.

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

According to the Windflower scripture intel report, he was even one of the five people who could fight Clementine, which is another testament to his power.

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