where to find dried herring? anyone know?
You need to camp at camp sites multiple times. You can do this only once per expedition. Each camping session increases your cooking level by 1, unlocking one new recipe. This one is probably cooking level 5~7.
As for me, I'm not sure what to do on the 3rd and 4th floor. I did the otto sidequest on layer 3's city and got the items behind his house, I've beaten the statue at layer 5, the one at layer 3 that unlocks the path underground/deepest layer, I've explored layer 4 from both entrances, gotten some items but I suspect I missed something in layer 4. And layer 5's door behind the boss still doesn't want to open. There are so many memos and sidequests I have no clue what I may be missing (and have been playing in Japanese). I finished Simon's sidequest.
My question: what are the triggers for progressing from layer 3 to layer 4, and from layer 4 to layer 5? If there are places to explore and key items, screenshots are welcomed too.
Also: the priest at the church that gives you hints about what to do next, and the polite kid near the church both disappeared at the same time, I have no clue where they are. (Edit: nevermind, 1Kiri1's walkthrough in this thread already covered this part, thank you)