Hi. I've started this game recently.

Are there missables?

The foxtails for Gouto are the only ones I think...

Yup, spot on, Lady_Sparda.

"Hey thanks. Now, I'll just have to take note of the foxtail locations." is what I thought but I can't find a list of foxtails in any of the FAQs.

So which of the foxtails are missable and where and when do I get it?

They're all missables. They can be collected on the field, or you can beat up Nekomatas to get some (though the drop rate sucks a bit). You have until Chapter 11 to collect 9 of them and give them to Gouto.

1 - Episode 1: Storage room of the Daidouji residence.
2 - Episode 4: World Map, North Chujou-Ku.
3 - Episode 5: Dark Kasumidai, W Supreme Court.

And, shit, those are the only marked in the guide... Just beat up a lot of Nekomatas, I guess.

I see. Thanks!!

I got 8 of the 9 I needed from just fighting Nekomatas, it only took about 10 hours, and according to my friend at Atlus, the drop rate from them is 2%