While the subject of the picture is rather serious, Reimu is coming off a lot more yandere then she really should to me with that last line and expression.
T34/38 said: A propaganda? But what the artist is asking?
He, and a staggering number of prominent manga creators, are asking the Tokyo Metro to not pass a law that imposes all sorts of restrictions on creating and selling anime, manga, or games involving underage sex that might not be acceptable based on societal norms.
With the amount of opposition I dear say there is hope this might not come to pass. It would be detrimental to anime manga and games not to mention the fanwork.