button press

There is a site of author’s comics and translations, acomics.ru. For a long time I use it and there is RSS feed with subscriptions. Found a way to get the contents, an example.

body: // * [@ id = “content”] / div [1] / h3 / span [2] | // * [@ id = “mainImage”] | // * [@ id = “contentMargin”] / article

But some comics have an age limit, for example:

When there is a button to press to view the content. Full-text RSS shows only this warning in the stream.
How can “virtually click” on this button and take the necessary content? Help, please.