[Rendar]

Characters who's initiative counter has already went (whilst KO'd) that are revived that round instantly get to take their turn and act.

Person A has 50 cel ( 49 or whatever initiative counter), and is at 0 HP
Person B has 20 cel
Person C is an enemy that acts on 30

The initiative counter will look like this

Person A (KO'D)
Person C
Person B

Person A will get skipped, it goes to C, then B.

Person B casts SECOND CHANCE on Person A.

Person A will then get to immediately interrupt Person B's turn and get their own turn (with the KD/whatever needed)