Since I have both WHM and SCH on animus, I can relate. It was super easy as sch but as a whm you pretty much have to deal with them with choco.

I ended up regenning/ss 1 npc but focus most of my efforts healing the other with my bird on tank duty.

When the other add inevitably dies hopefully you are close to the 2nd wave of mobs. After that I would divide heals between choco and npc/self, and dot up enemies who had the most hp.