I don't have a definite answer. It might be a unique creation with its own complex plot and characters. But without more context, it's hard to say for sure.
The origin of the harpy story can be traced back to ancient Greek tales. In Greek mythology, they were depicted as winged creatures with the faces of women and the bodies of birds, often associated with punishment and evil.
The Lair is purely fictional. It was crafted from the imagination of the creative team and doesn't draw from real-life events. They came up with the plot and characters to entertain the audience.
Obviously, Harry is the main character since it's 'Harry is a Harpy' fanfiction. But there could also be his friends like Hermione and Ron, who might react in different ways to Harry's transformation into a harpy.
I'm not entirely sure specifically what 'lair visual novel' is about as there could be many different ones with that name. It could potentially be about a fictional lair, perhaps a hidden place where adventures or mysteries unfold in a visual novel format.
Once upon a Halloween night, there was an old lair deep in the forest. A group of curious teenagers decided to explore it. As they entered, a cold wind blew, and the candles on the walls flickered ominously. Strange noises echoed through the corridors. Suddenly, a shadowy figure with glowing eyes emerged from the darkness. They ran in panic, but the lair seemed to have no end. One by one, they got separated. In the end, none of them were ever seen again.
The main characters in Borderlands 1 are the four Vault Hunters. There's Roland, the Soldier, who is good at using guns and providing support. Mordecai, the Hunter, is a skilled sniper. Lilith, the Siren, has phase - walk abilities. And Brick, the Berserker, is a melee - focused powerhouse.