Ponkotsu Kawaii Mamiya-san ~Shanai no Bijin Kouhou ga Tonari no Seki ni Isuwaru Ken~Ponkotsu Kawaii Mamiya-san: Shanai no Bijin Kouhou ga Tonari no Seki ni Isuwaru Ken; The Cute And Clumsy Mamiya-San: The Beautiful PR Lady from Work Who Took the Seat Beside Me; ぽんこつかわいい間宮さん ～社内の美人広報がとなりの席に居座る件～

"I know I'm a bit of a weeb, but I'm looking forward to working with you!" Ms. Mamiya, a senior employee with big breasts and a beautiful face, has moved into the seat next to Fujishiro, a working adult in the shadows. While hiding the fact that she is "Nisai-san," an influencer whom Mamiya-san admires, she weaves a gem of an office love comedy with Mamiya-san and other unique heroines such as her colleague, a cool beauty, and a high school girl who is a good tease!