The Skill Tree Unlocker

Akito is an adventurer who belongs to the party Golden Fang. By skillfully wielding the Extra Skill [Unlock & Lock], he has contributed to the party by unlocking his comrades’ skill trees and allowing them to acquire new abilities.

However, due to his low combat ability, Akito is expelled from the party. Using [Unlock & Lock], he finally unlocks his own skills and sets out to escape from the dungeon…

(Source: Akita Shoten, translated)