Harem (contains spoilers)

For no apparent reason, Eddie Cai suddenly got teleported into the world of Resident Evil.
While trying to survive, Eddie needs to create his Serum. But, all these works make his life pressure continue to grow.
Especially after he meets Ada Wong.
All he can do is 'Fight' with the female Wesker to calm the stress.
As for Alex, Jill, and Rebecca. Eddie *cough* does not know them... Maybe just friends who like to hang out and drink coffee together?
Wait... You tell me they all had children?
In the future?
Ah, I see... Still, who is the children's father?