Yuuji Sano endured a hostile environment in the corporate world and worked himself to exhaustion. But his fortunes change when he is transported to a fantastical realm that feels like a game. Initially, he seeks a simple life, but fate has other ideas. Yuuji discovers he is the Monster Tamer, considered the weakest of all adventurers. Despite this, he manages to tame several slimes in his community and gains magical abilities as a Sage. This prestigious role allows him to showcase his abilities to the fullest. Despite his newfound strength, Yuuji is hesitant to use it due to his traumatic past. However, he may not be able to keep his talents hidden for long as threats emerge in his new world. These dangers are unpredictable and could jeopardize his new home.