I have a story idea for all the other bitches who, like me, think there's not enough isekais where the heroine is hate fucking the villain :D
The villain is a god who forces immortality on the heroine and treats her like a posession. The heroine sees this as a curse because she thinks if she dies she'll wake back up in our world. He's the only person who can kill her and he refuses out of spite because she "belongs" to him.
But one of the fates tells her that if she kills him, the last drop of blood from his heart will become a fruit, and if she eats it she will become mortal again. So she's like dead set on killing him so she can come back to our world. She tries to kill him during sex at least once.
At some point he gets tired of the murder attempts and banishes her to the mortal realm where she immediately learns how to use a sword. Her blood has healing properties and she's immortal so she fights in several wars, learning how to use multiple weapons.
She falls in love with one of the men who teaches her how to fight. He treats her with respect and keeps her secrets without being told to. He's a warrior but he's also kind. She's absolutely terrified that the god will kill him if he finds out she loves this man so there's lots of pining.
There's hate sex. Lots of it. She's drawn to him because to make her immortal he forced her to consume some of his blood and it draws her to him so now while she fuckin hates this guy she also finds him irresistible so she's like "he's almost too hot to kill but I want Starbucks and Barnes and Noble and the conveniences of modern society back and to not watch everyone I ever love grow old and die without the comfort of knowing I'll see them in the afterlife, so it's gotta be done."
The god: I am the only person who can kill you and I never will because you are mine and I want to keep you (and have sex with you) forever
The heroine:
Anyway I'm not going to write it yet but I as soon as A Lesbian Gets Isekai'd is finished I have to pick between my several other ideas I have for web novels/books but honestly this idea is so trashy I'm like "I want to read this story but unfortunately that means I need to write it first. Fuck."
The guy she falls in love with is A Decent Man who treats her with respect and respects her agency, something Mr Forcing Immortality On You does not. They've been companions and battle buddies for years and she desperately wants to be with him. There is pining. He helps her find a way to kill the god, is her companion on her quest to find a weapon that can kill the god, and he's at her back during the final showdown. The first thing she does when she regains her mortality is tell him she loves him. He's sweet and as kind as a warrior can be. She desperately wants to save him from her immortal lover's jealousy.