Hi there, just to be clear, thhe first image is the first part of the story while the rest of them are part 2.
If you want to read the full story you can find it on fantia.
Everything is explained by the artist in the source link below.
________________________________________________________

If you want to see more art made by this artist:

Fantia Gallery: https://e-hentai.org/g/3075729/f0815d346b/
Twitter Gallery: https://e-hentai.org/g/3075734/cbeaee55e4/
Pixiv Gallery: https://e-hentai.org/g/3075739/cc1b4eee10/

Source Link: https://www.pixiv.net/en/artworks/118929367

so is basically an advertising of a doujinshi, and not even correctly tagged at it.

Base +10, Hurahara +20, Golder09 +6, EchoCrest +6, Azubaloo +6, rockmiily -7

fr, it's just advertising.

Base +5