I played the game for 23 hours. I just went summoning GFs all the way to the Missile Base, but (1) attacking like that was consuming too much time. I thought of changing the tactic from summoning GFs to learning the junction system, but (2) drawing was going to consume too much time, so I gave up extremely sad.

I stopped playing the game a long time ago, but a full review of it by GameSpot made me feel like playing it again. If there is a way out of 1 and 2? If yes, can you summarize the story until that part and tell me the way out?