Took me a while but I finally beat chapter 2. For me, two fights in particularly were extremely difficult to achieve flawless victory and that was the warden and the first appearance of the plague licker monsters.
The battles were harder this time around. If anyone wants flawless victory in every battle, better make friends with the quick save/quick load. Most battles, you're out numbered. The difficulty level increased significantly from chapter 1 but is manageable (albeit frustrating.)
That last battle ... if you don't bother with any of the other characters and focus solely on Duriken with the help of Zoria's enamored, it's super easy.
Was hoping to see what happens to Aizu/Aizu's severed arm but guess that will be in chapter 3.