The Demon Queen's Curse and the Hero's Daughter

The "Demon King," once sealed away, has returned to a world that had known peace. Unable to feel pain, the Demon King's clan is cold-hearted and ruthless. They are expanding their forces across the land, intent on wiping out humanity. Under the Demon King's command, his daughters are establishing strongholds in various regions, gathering strength for the coming war. Now, you must rise up. Drive back the goblins and uncover the Demon King's whereabouts. Capture the Demon King and crush his ambitions—once and for all!

As the rumors about a brand new, revolutionary (and absolutely NOT cursed) website DemonComm start to spread, students belonging to the local school's Paranormal Research Club seem to take interest in it. Fortunately, one of the club members stumbles upon this amazing website and manages to sign a contract with a demon with not a single string attached. Join Ai on her incredible adventure of discovering the best website in the entire internet! [Intro sponsored by DemonComm LLC.]

Asmodeus is in a lot of trouble!!!
She's a fearsome, terrifying, awe-inspiring (in her own words) demon queen, who has recently conquered the country of Mielle. In a display of her raw power and cunning, she was able to oust the former king, Limone, from the throne, and now she has declared herself Mielle's ruler.
Nobody can defy Asmodeus now. She really is without peer. As far as demons go, she's one of the most accomplished in the realm...
So why can't she make Mielle's deposed princess, Lisette, fear her?!
Asmodeus is doing her best to strike fear into the heart of the princess, who she took captive after forcing her father to flee the country, but Lisette's nerves must be made of steel! It doesn't matter what Asmodeus does or says; she can't get Lisette to stop smiling.
Now, Asmodeus's generals are starting to question her right to the throne. How can she rule over a country if she can't subjugate a single human girl?!

A sexy demoness holds your fate. Can you resist her temptations to save yourself?
This is a small game that takes place before UMCH and describes how and why Maiko got her hairpin. If you are familiar with UMCH these character appear at the start of that game. This game explain how they got to that point.
The story changes based on the decisions you make.

Frau and her friends talk about how they couldn’t stay in a haunted house. Frau doesn’t believe in ghosts, so she says she’s staying alone all night in a nearby abandoned school to prove they don’t exist.
However, as soon as she enters the school at night, she realizes she’s not alone. There seem to be a lot of homeless people living there, or were they ghosts?