To/ if whoever that is still stuck at that area, then please, consult the JPN wikia or take notes on what material names appear in 「These boxes 」 so to use visual aspect to help yourself by searching for the key term (http://www16.atwiki.jp/godeater2/) also, googe translator's "drawing tool" for JPN language is quite useful.
or take the "trial and error" repitetive process of trying again and again till you get thru.
I dunno about the upgrade thingy. It's been so long since I played GE2. All I have now, thanks to an empty wallet, is the Trial ver. of GE2 Rage Burst.