Defeating Fafner didn't take up much effort from everyone. The followers of the Dragon Worship Sect were basically pushovers and as for Fafner, who was sealed in the crystal, he was powerless, unable to get any response from heaven or earth. Even though it couldn't be absorbed by Greiya (if she could, they would have done it earlier when Duanmu Huai killed it), Duanmu Huai wasn't completely helpless against it.
All they had to do was ask the Clear Sky Angel for a hand.
Saharir didn't refuse, after all, she came exactly for this reason.
With a shriek, Fafner completely dissipated under the Clear Sky Angel's starlight attack. It signified the complete disappearance of this evil dragon, who would no longer cause any more trouble.
With the complete disappearance of Fafner, the girls finally let out a sigh of relief. After entirely exterminating the Dragon Worship Sect, they returned to their inn in the city, planning to take a good rest.