At the very least, for Reiger, this is a perfect ending.
It's just that, even Reiger did not expect that while he was in the midst of an intense battle with Cornus, Altoria and Morgan would actually join forces to battle Alberon and successfully defeat him.
Alberich Vortigern, he was someone Reiger had intentionally left for last to deal with.
His true form is the Calamity Worm capable of destroying Britain. When Cornus is vanquished, it would truly awaken, transforming into a bottomless wormhole capable of swallowing everything, leading the world into complete ruin.
Because the Fantasy Tree has already been drained by Morgan, and its Magic Power was used to revive Britain, summoning fairies to make the Fairy Country of Britain a special Lostbelt, similar to a Singularity. Unless everything is turned against its rebellion and history is restored, the British Lostbelt would not be pruned.
