A new thing that I've been kicking around in my head for a few months.
Basically, in ye olde feudal times, a group of swords-and-sorcery adventurers go to fight the big bad evil demon lord. However, said BBEDL is too powerful for mere humans to fight and kill. So the adventurers wander some more, and find/create a ritual that pools together their will, hopes, and desires that summons/births a low-G god (along the lines of a spirit summon in fantasy franchises). Together with this god, the adventurers manage to kill the BBEDL. However, in the process, one of the female party members dies. She wasn't the strongest, not even close, but she was the heart of the group.
The god is able to stay behind in this world, and him and the remaining party members all become essentially immortal. They mostly go their separate ways, only coming together again to keep an eye on new threats. Time passes, the memory of and ability to use magic fades away, and the modern age happens as we hit present-era Earth. Everything else was basically background and set-up for the actual story.
The god, or one of the party members figures out how to reincarnate their fallen female party member. She won't have any of her memories, but that's fine. They just want her reborn soul to live a happy life. To this end, the entire gang all comes together and lives in the same small city/large town, and each couple up with their old romantic flames. The only one who doesn't get together with somebody else is the spirit-god. Also, he's male, bishonen, and basically looks about high-school age. You can probably tell where I'm going with this.
Anyways, the old party members all have kids. The reincarnated girl's parents are what was her past life's sister and that sister's lover, now-husband. Additionally, they had a son before she did, because they wanted her to be a younger child, not an older/only child. Reincarnated girl's older brother isn't anybody 'special', but since he's raised by two centuries-old adventurers who are able to use magic, he's still a fairly kickass big brother. As the reincarnated girl grows up, she has an extremely good family and life, with parents and a big brother who love her and want her to be and help her to be the best person she can be. Then she goes to school, making friends with the kids of the other adventurers. Also, the bishonen immortal spirit-god attends her school, entering her grade and class.
This feels like it would really work best as a feel-good VN. Multiple routes, going friendship-only or romance, and the protagonist, the reincarnated girl, slowly unravels the mysteries around her parents and her friends' parents, and the new handsome transfer student who espouses her parents' own beliefs in helping everyone be the best they can be. There would have to be a few things to contrast against the overall positive vibes, because there has to be setbacks to make a story. Possibly reincarnated big bad evil demon lord who also goes to her school, or something.
