The auto saving didnt work well, my game wasnt save. So i hv to replay the story that i've already done. It sucks. Cuz of that i make sure to save the game manually before exit. It works for several times. But these 2days, it didnt work too. I played the game last night, finished one story. And the next story i had to wait abt 3h, and i had half energy. So i save it and close the game. In this morning i checked it, i had to replay the story again, i only had half energy and had to wait for 3h.