Hi,
So Yoshimo and kachiko both died in a fight but I raised them during the fight, no Hatra-kiri or death.
Is their romance still ok, or do I need to make sure they don't die at all?

Cheers
Vandervecken

It is probably OK, but you should either check on shadowkeeper just to be safe, or reload.

Worst case scenario start a new game, in which case you probably wouldn't play too much, because I can't imagine a situation to die BOTH NPC-s in the late of the game (except wih Anvil)