Series: Monogatari - The Darkness (Akableak)

This is a series of adult illustrations by artist Akableak featuring Oshino Ougi and The Darkness from the Monogatari series, supposing what would happen if The Darkness was a tentacle monster and caught Ougi.

It was originally posted across Twitter (mostly cropped) and SubscribeStar (previously as paid rewards, but made public).

A later, similar series can be found in pool #22532.