The very last strawhat

[sora's 青かった星]

Most people will never guess where to find "the very last straw." I was surprised at how I found it.

[Cowblitz]

I have it in my inventory but it doesn't say where I got it from, so I guess I will never know.

[Stahlfrau]

How can you even miss it?

[Zenith]

You get it as a reward for completing the sidequest Salty Detox. It was only added in 1.4.1-2, iirc.