The Beginning
Ok so... This is easily going to be the most 'unique' idea I've ever submitted on this site and it's the one that's going to take the most exposition to actually explain. This concept takes heavy inspiration from the anime "That Time I got Reincarnated as a Slime", but it's not going to make overpowered and unbeatable protags. As the title says, this is an isekai story, but in order to get to this incredible new fantasy world... you all have to die first.
The Setup
Imagine a world parallel to our own. It's like ours except this world - Vecta - is built on magic in place of science. Various races of monsters coexist with the 'Morai' (More-I), Vecta's equivalent of humanity. This world is overseen by the Twin Gods: Drasil and Morganna. A brother and sister pair who rule over darkness and light respectively. While their relationship is amicable at best, both seek to outdo their sibling in creating the 'ideal' Vecta. One day, Morganna took notice of how certain people in our world were having their lives cut tragically short. Feeling pity, she decided to reincarnate these people in her domain, giving them new bodies so they may continue their lives anew. When these "Children of the Otherworld" were discovered to have great potential for magic, creation, and destruction Drasil took notice and sought out Otherworlders of his own to challenge his sister's creations.
While the arrival of an Otherworlder is an uncommon occurrence, it causes a stir in Vecta when one is discovered. Naturally, the humans brought into Vecta aren't all created equal. A human from our world could be reincarnated as a Morai, an Orc, a Vampire, or even an Elf! The respective god chooses the form based on the last wishes and desires of the human's soul before it is taken. This way, the soul is allowed to live out their most 'ideal' life upon arrival in Vecta. In addition to appearance, the human can gain skills and abilities with their last desires, not unlike building a character for a video game!
How it All Works
If this sounds like a confusing concept to you, here's how it would work in the RP context. Your characters are all humans living on Earth. Your opening posts will start with a "day in the life" of your character BUT they will die in some random and unexpected way. As they breathe their last, your characters will be visited by one of the two gods (which one will be a part of your CS). Then, you'll have a chance to tell them your last desires, regrets, and wishes upon being offered a new chance at life. Based on what you write, your new race and abilities will be created by ME your lovely GM! The "challenge" of the RP will be seeing how you fare at writing your character in the new world with the skills and abilities you've been assigned. There may be an overarching story thread here and there, but the world of Vecta is a fun sandbox to sort of mess around in and see what chaos you get up to.
NOTE: Just because they're the gods of "Light" and "Darkness" that does not mean either god is wholly good or evil. There can be good creatures of darkness just like their can be evil beings of light. It's genuinely all in the way that you look at things.
The Gods
Some Quick Blurbs about the rulers of Vecta
That's about the long and the short of it. If this sort of writing challenge RP would appeal to you, leave a reply and let me know. I can start working on character sheets and fleshing out the larger world of Vecta so you guys and gals can have a better idea of the sandbox you're being (randomly) dropped into! Have fun dying!