Kyuuteigaka Marize no Yuuutsu

Not knowing what had befallen the Queen,
court painter Marize arrived to draft her portrait.
She saw Her Highness being r*ped before her eyes,
and was instructed to paint that lurid scene.
Once her task was completed, Marize was violated too.
Tentacles assailed her innocence. The queen watched.
Court painter Marize's melancholy days had begun.

[From DLsite English]