Possibly and possibly not. Echo had very brief NSFW writing, but no CGs to my knowledge but the prequel of Echo, The Smoke Room is full NSFW from the very beginning. We'll just have to wait
I think it has the potential to include nsfw scenes. As for writing it is nsfw. Especially in the beginning. The rest is all cutesey stuff like hugging and kissing. I definitely would not want to be caught at work with even that tho.
