As of now, the Fairy Tail: 100 Year Quest manga is still ongoing. The creators are taking their time to develop the story and bring out the best for the readers.
The Fairy Tail 100 Year Quest manga has indeed finished. It gave a satisfying ending to the adventure, tying up loose ends and leaving fans with memories.
Another interesting concept is to delve deeper into the backstories of the dragons involved in the 100 Year Quest. Maybe create a fanfiction that focuses on the relationships between the dragons and how it affects the current situation in the Fairy Tail world. This could involve flashbacks and new revelations about the dragons' past actions and motives.
Macao. As one of the older members of Fairy Tail, he has a wealth of experience. A fanfiction could explore his role in the 100 Year Quest. He could use his connections and knowledge to gather important information or resources. For example, he might know of a hidden library or an old wizard who has information about the quest's next destination.
He might be protecting her. Natsu cares a great deal about Lucy. If the secret got out, it could put her in danger, either from outside threats or from within the guild if they misinterpret the situation.
Well, in fanfiction, Lucy might be crying because she lost a fight against a powerful enemy. Maybe she felt she let her friends down. For example, if she was unable to protect someone important in the story, it could lead to her breaking down in tears.
In the 10 - years of this fanfiction, Natsu and Mia could be part of a prophecy. They have to fulfill certain tasks to prevent a great disaster. Their journey would be filled with self - discovery, as they learn more about their own powers and their roles in the Fairy Tail universe.