sorry about late reply. I didnt get notified. Well
Senya is in elves territory during her dissapearance. She was heavily wounded because of the attack of vermouth (But Seinna thought that vermouth is being control by the demon) she was left with a big hole in her stomach then the demon duke raizakia attacked her in elves territory while she was still weak because of her injury and the only thing she can do is banished the dragon to the dimension rift but she didnt succeed killing him and with raizakia last attack. Sienna and the elves got caught by the attack and became heavily poisoned/cursed. Sienna was able to synchronize with the World Tree, though, and made herself as well as around hundreds of elves go into a slumber to prevent the curse from spreading further.
I CANT WAIT FOR THEM TO REUNITE AGAIN AFTER 300 YEARS AND FIGHTING THOSE TWO STRONG DEMON KINGS. ANISE. SEINNA. VERMOUTH. MOLON AND HAMEL OF COURSE