Once you figure out what the menu options are and what each seishin does i think you're good.
Nice that they show you sprites of the units you are picking, back in the day i had to memorize them and would write down the symbols for their names and whatever i thought their names were. Think i called Boss Borot "fish bowl robot", or something weird.
Little kids driving carts downhill with hilarious results. Check at 1:08 for best crash. http://www.youtube.com/watch?v=5HB0wyvXFeg
Aside from having no idea what is going on, it should be fairly easy to play. Its pretty easy to find the what the SR points and level objectives are online.
Though its not a bad idea to do some basic study of moon runes. Even if its just learning the Kana, It will really help to be able to read the weapons. But I can't imagine its really that big a deal not knowing what they are named.