I just finished Pokemon Sun, and I need a checklist for the post game. As many fans know, I've heard this has a huge post game that takes more than 2 hours. Thankfully, I have time. So I have no idea where the battle tree is, and why to get to the hotel, but hau also said he wants to challange me. Should I quickly re-battle the elite four? If I don't, will he become the champion? So many questions. Please, I need quick answers, hau may have destroyed the E4 by now.