Alright so reviewing the information we currently have at hand, here are the storylines so far.
1. The Friendship of Amare and Brontes- This will be the first storyline introduced. This is what starts us off. Brontes and Amare mending the friendship they once had- their father and son bond. This'll be a sweet little thing mostly between Tendo and I. However I suspect other characters will get in the way. For example, Amare is good leverage against The God of The Underworld, as well as a good way to get revenge...
2. Thellie's search for home- Probably the third character to be in the story (But this isn't certain or anything) she will be the first to notice Brontes's return. She will interrupt the reunion between Amare and Brontes, in order to try and take Brontes's key. However this will fail because of Amare, leading her to go and tell the other Gods and recurit them to try and get home. This will allow other characters to be introduced and their storylines to start. At first, she will be chasing after Brontes however, after a while she will give up. However not for good this time! No, this time she will search for other methods to get home, thus leading to new storylines and adventures...
3. Tetsuo's Quest for Power- In his quest to take over the world, Tetsuo will use the return of Brontes to his advantage. However he'll quickly drift away from the whole Brontes thing, far quicker than Thellie, and use this as a chance to set his plans into motion...What he's going to do and how he will do it, who knows? Point is, his character will form his own storyline.
Edit: Of course all of these characters will interact and the like. Just letting you all know where things are headed so far.