Rick belongs to the adventurer circle “Yari-circle” (a wordplay combining ‘spear’ and ‘sex party’/’pick-up circle’) made up of spear users. He awakens the perverted skill [Lust], which increases his combat ability whenever he does something erotic. As a result of only him becoming extremely popular, the circle was driven to the brink of collapse, and Rick was ordered to leave by the leader! Rick’s solo adventurer life begins, but…?!