Mukai Ai's "Gokkun" debut work!! Ai, a married woman whose husband is away on a business trip, works part-time in inventory management at a company full of men. Ai has minimal interaction with her co-workers and is always quiet. Everything was going smoothly until one day, when one of her co-workers, Sanada, starts messing with her. "Ai-san is always quiet and never talks, huh (lol)?" he says as he starts to play with her body. Ai tells herself that she can just be patient for a little while and gives up on resisting. However, when Sanada's cock enters her mouth, she is hit with a numbing sensation...