What if years after the grail war Shirou "died" after a lifetime with his friends & family & is reborn in the cardinal world taking the place of rimoru tempest. Having to adapt & thrive in this new world what would he do.

requirements

1. shirou takes the place of rimoru if he is a slime as well or some other creature is up to you but his origin & mage craft effect his form (such as if he's a slime he might be made of liquid metal or something like that).

2. shirou has some of rimoru's skills & some of his own based on his past life's skillset & accomplishments & they influence his development & evolution.

3. harem the bigger the better

optional

1. other reincarnations start appearing in the cardinal world friends, enemies, lovers, & even random people of note start appearing & shirou either must befriend or reunite with (such as people he would get along with or his past friends & lovers) or must fight (such as past enemies like Gilgamesh & such)(id love if you do this because i love the idea of shirou being able to reunite with his loved ones like rin, sakura, arthuria, aliya, & more that he knew but it isn't required). any new abilities, skills, & if they are diff races are up to you it just has to fit them & their character in some way.

2. how does shirou being the main character change the plot f how does he develop & evolve differently than rimuro & why are people from his world reincarnating.