Magician Tia and the Mysterious Grand Library

The PC game from the doujin circle "Aserora", "Magician Tia and the Mysterious Great Library: The Lustful Magician Saving the World Through H-Ratings and Shame Therapy" is getting a motion anime adaptation!! This is a story set in a world where magic is as common as daily life. The twins "Tia" and "Lumiel", descendants of a great magician, run a clinic they established in the remote town of Almeria. While working at the clinic as usual, they were enjoying a meal together when they heard strange noises from below. The basement held a library storing magic books used by their ancestors in the past. Thinking it might be a ghost, the twins nervously went to check, only to find a sealed magic book glowing ominously in the back. When Tia tried to touch the book, the seal was broken and the book opened. The unsealed magic book opened on its own, and with it, a lustful demon named Irene emerged with a mysterious miasma. The twins unknowingly fell victim, losing their virginity and being marked with inappropriate seals. Then Lumiel was taken inside the magic book. "If you manage to find your sister safely, I'll give her back to you. However, if you don't have sex, your sister will suffer terrible fates... fufufu♪" Will Tia be able to rescue her beloved sister without succumbing to pleasure...?