Kan-in -manatsu No Asedaku Koubi-: Naisho No

木村課長は、彩が何かを隠していると直感した。彼は、工場の監視カメラと自動ロックシステムを使い、彩の行動を封じ込めようとする。

(Secret Adultery -Sweaty Midsummer Mating-) is a provocative title within the adult visual novel (VN) and eroge genre, specifically designed for those who appreciate the "netori" (taking someone else's partner) and "adultery" tropes. Released by the developer Innocent Grey (or its sister brands focused on more explicit themes), the game leans heavily into its atmospheric setting: a sweltering, humid summer that serves as a backdrop for forbidden desires. Plot and Premise

Chaos followed. The fog thickened, and the “bodhisattva” Nao had been warning about turned out to be… a garden gnomes her grandma had planted in the woods. Nao had been trying to protect them from the heat, but her “visions” had led Kaori to conjure a foggy illusion. Aoi, meanwhile, had tripped into the gnomes’ grove, soaked her costume, and fainted from embarrassment.

Following the original 2022 launch, an "Extraordinary Edition" was released on July 26, 2024, providing updated or additional content for fans.

After conducting a search, I found that "Naisho no Kan-in -Manatsu no Asedaku Koubi-" appears to be a Japanese manga or anime title, but I couldn't find much information about it. It's possible that it's a lesser-known or older title.