How the hell do you kill Cat Imp? No attacks hit, and even cheating their magic attack power to 1000 does no damage.
1)-> Use the Hero's skill "Double Agility" for all the party. That reduces the chances of she runs away.
2)-> Use Priestess "Soften" skill on her. That reduces her defenses.
3)-> Use Mage "Double Attack" for the Juliette
4)-> Use Juliette five strikes skill (I don't remember its name but is the one which cost 60MP). After Soften skill, her only protection would be her evasion, so quantity is betters than quality.
5)-> Use the Hero strongest skill (that one that cost 180MP). It is the only that came with 5 attacks.
6)-> Use Priestess Soften skill again, since it stacks.
7)-> Use Mage "Bolt++" skill. Imp Cats has great Magical defense (that now should be several weakened by Soften). Imp Cats has great Defense and Magical Defense but only Physical Evasion, not Magical Evasion.
Alternatively, you cast "Double Attack" on the Hero.
Then Repeats steps 5 to 7.
Another way is using Lamia:
Replace the Mage with Lamia
1)-> Use Hero's "Double Agility" for the party to avoid the Cat running away on the first turn.
2)-> Use Lamia Petrification skill. It ignores physical evasion and magical defense.
3)-> Use Priestess Soften skill.
4)-> Use Juliette five strikes skill (that one costing 60MP).
5)-> No need to use that MP expansive Hero skill anymore, as a petrified Imp Cat won't run away. So just attack here or one of Aero Skill (since it's magic, it ignores physical evasion).
6)-> Use Lamia "End of Luck" (I guess that its name) skill as it nullifies Cat's physical evasion.
7)-> Use Priestess Soften skill again. It's a MP cheap skill anyway, so better be safe than sorry.
8)-> Use Julliette five strikes skill (that one costing 60MP) or I guess this time could be a cheaper one.