Hmm I think I've tried everything I can do to fix it, like reboot the device, clear memory, reload the scene, reinstall the game ect, so I guess my device is just incompatible for the game. And the assets of the restaurant scene except for sprites are not showed as well, but it didn't crashed or something so it didn't bother me much.
I alternatively use my laptop to finish the rest of the game though so it's alright. This game gives such a joyful experience, looking forward to the upcoming chapters!