Wow, 35 hours, that's certainly a rushed game :P. You probably just went to every objective and didn't explore for treasure and what not.
Anyway, give Gran Pulse a go after the post game. You'll be there for much more than just 25 hours, especially if you try to do every monster hunt, as the last missions will have you upgrading everything to the maximum in order to finish them.
Current PC Build
CPU - i7 8700K 3.7 GHz (4.7 GHz turbo) 6 cores OC'd to 5.2 GHz with Watercooling (Hydro Series H110i) | MB - Gigabyte Z370 HD3P ATX | Gigabyte GTX 1080ti Gaming OC BLACK 11G (1657 MHz Boost Core / 11010 MHz Memory) | RAM - Corsair DIMM 32GB DDR4, 2400 MHz | PSU - Corsair CX650M (80+ Bronze) 650W | Audio - Asus Essence STX II 7.1 | Monitor - Samsung U28E590D 4K UHD, Freesync, 1 ms, 60 Hz, 28"
