https://twitter.com/yabukimao/status/1089824350801342464
Seems the original mangaka found this scanlation. They found this bonus page amusing, at least.
I wish we lived in a world where it was a simpler matter to support the mangaka. And I do think there's ethical issues regarding scanlation and I wouldn't blame any mangaka who hates them. But at the same time, I really do think that art wants to be free and to be seen by as many people as possible. It's just sometimes a reality there isn't a critical mass of readers overseas to support a mangaka even if they did sell the work in English. But it still sucks that scanlations effectively block the possibility of them being able to do so in future. However, it seems wrong to me to deprive people of the experience of reading a story while it's stuck in that limbo. It's messy situation.
But I really am thankful to Mao-san's hard work on this story. Sylphy and Iori together have made me happy on many evenings I was struggling in.