A protagonist, an adventurer scorned as useless, only capable of using support magic, spends his days simmering with pent-up sexual desire.

One day, he successfully traps a couple of adventurers using a support magic trap! He ensnares Ann, a capable and beautiful cat-girl adventurer, and successfully seduces her.

His sexual arousal increases his magical power! Realizing his talent, the protagonist uses his limitless magic and support magic to successively trap and seduce top-tier female adventurers, forming an orgy party.

Trapping and rising to the top! Thus begins his ultimate harem adventure life!