I guess the first few scenes of chapter 1 were what some considered dubcon? Since shiina pretty much told him he couldn't leave until Shiina "taught" him... idk
Maybe that one part when he told him "not yet" and "please don't", and he still continued, but I think it was more out of embarrassment than being against it. But I agree with you.
Where was the dubcon?? I was anxious reading chapter 5 but Miss DC never showed up for work lmao