Go back to Abaddon and talk to Lessica again. This time answer with “yes” unless you want to see previous ending one more time :D.
You can steal Gateau Chocolate from her :D. Her Hp is about 10.000 (I don’t equip sprite Sopia, sorry please leave comment if you know). Attack Patterns:
 Mental Wall: Blocks your magic attack on the next turn after she used it
 Sanctus: neutral/holy magic damage about 400
She’s easy just keep attacking her. She’ll join you at the end of the battle, SWEET!!
Now go right to the moving stairs and check the panel to descend. You’ll see similar area below so just going east and you’ll face
First of all, Lessica will use her cool attack at the beginning of the battle (LVL 2 Awoken). But they don’t die…. Steal Lancination (War) and The symposium (Conquest). Their attack pattern is still the same as before.
Use Brahmastra ASAP, this attack should cause blind to War which will render him blind and useless. I suggest you to kill War first and then switch to Conquest (Conquest tends to use support spell like item estop, def estop, etc).
Continue and you’ll arrive at planet’s core. Just keep following the path (nothing special in this area. It is pretty straight forward, so you don’t need map). At the end of the path you’ll face.
Remember when Darwin said
But here we’re now facing him again :D. This battle is quite hard. Steal Sapphire (Death) and Angel Howl (Famine). Most dangerous combo is breath of the underworld and then any Famine’s attack will kill your characters …
Cast pair “Hot pepper” first and save your charge gauge to do Collbrande. If you’re slower than them, then use sprinter’s breath to boost your character’s speed.
Continue north and event
Steal Vin Brulee (VDSQ) and then just wait like you did on the very beginning of this game.
He can attack twice per turns. At the beginning of the battle he’ll use megiddo’s blessing on every turn. Never use pair attack until he has stopped casting megiddo’s blessing (about2-3 turns). Attack Patterns:
 Megiddo’s blessing; Deals 400 damage and inflict bad statuses on target
 Hammer of Tyranny: 400 damage to single target
 Flame of destruction Kindled: Preparation before casting Gehenna flame on the next turn.
 Gehenna flame: Neutral damage (even the name of this attack is flame) to all targets (1500 damage). Use Defend when to reduce the damage of this attack.
 Forced Regeneration: heals about 1500 Hp to itself. Change its element into gale, aqua, or blaze. use it for your advantage.
I haven’t tried it yet but try to use necrosis to reduce 15% of his Hp at the beginning of this battle, just keep doing this until your normal damage deal more damage than necrosis (I don’t have Cupido sopia equipped when fought him).
See the ending and congratulation one more time :D. Save your clear data and Load it again.
Thanks for using my guide. The video of the ending song has been removed by the uploader, if you want to know what is the song’s name and the singer, Singer: Minori Chihara – Song: Celestial Diva