Main Story/Deal with the Devil

Minimum level: 68
Story: Pierpont is the capital of Avlee. It's an enormous city, and it's close to the front. Only by repelling the enemy's assault there will we have hope of defeating the evil power.
Chest rewards:
* 15 Stars - 50, 15 50K, 5000
* 30 Stars - 50, 20 80K, 8000
* 45 Stars - 500, 25, 100K, 10K
=Side Quests=
* Pile of Supplies: 10x, 10x
* Hell Hounds: 5
* Demonic Guard: 5
* Demon: 5
* Hall of Sins: 5x Gog tokens
* Demon Gog: 5 3x
* Discarded Chest: 50
* Pit Fiend: 1 4x
* Devil: 1 4x
* Demon's Treasure: 20 30
* Magic Shrine: 40 OR 1
Map completion reward: 300, 10x Orc tokens, 20x
==Hidden Chests==
=Arena=
Can't you say something? You act as if I weren't here! Say Something! Talk to me!
After clearing Stage 18-9, Arena is revealed. Winning the challenge has 4 grades, each with a Hero stat bonus:
*C grade - 🛡️ Hero Defense +2
*B grade - 🛡️ Hero Defense +2
*A grade - 🛡️ Hero Defense +3
*S grade - 🛡️ Hero Defense +3
For the total of 🛡️ Hero Defense +10, you need to finish the challange in under 60s, without losing any unit and with over 70% HP left.
=Stages=
Each stage win rewards an additional , to their respective materials.
==Stage 18-1==
==Stage 18-2==
==Stage 18-3==
==Stage 18-4==
==Stage 18-5 🏰==
==Stage 18-6==
==Stage 18-7==
==Stage 18-8==
==Stage 18-9==
==Stage 18-10 🏰==
==Stage 18-11==
==Stage 18-12==
==Stage 18-13==
==Stage 18-14==
==Stage 18-15 🏰==