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I can't seem to find the ship upgrades, for awhile it was fine but now I'm on the goddess boss fight and my ship is way too weak to survive it, how do I upgrade or find the upgrades for my ship? 

I lost my save data and just wanna replay some of the CGs

thank you. 

I was playing the tutorial on the Deck and no matter what buttons or combinations of buttons I pressed I couldn't pick up the wooden stick? Also do the NPC girls get pregnant and give birth like Lona? If not I think that'd be an awesome feature. Loving the game so far but total novice.