Since he was young, Eran was enamored by tales of adventure, and none were more inspiring than the ones about monster girl tamers: heroes who traveled the world, taming monster girls to journey and fight alongside them. Hoping to make his childhood dreams come true, Eran enrolled into an adventurer's academy and learned that he had the potential to become a monster girl tamer!

Not everything is as he envisioned however, and Eran quickly abandons the path of a tamer to forge one of his own: one that will allow him to rewrite the way the world saw monster girls. He would travel far to see his world come to light, forging bonds between his monster girl companions through trust, friendship, and love.

With each step, Eran is confronted by the systems in place meant to devalue the connection between humans and monster girls, as well as the people who designed them. As he reaches the bright future he fights for, a shadow of mystery is cast behind him and grows larger the closer he gets.