u/Obvious-Parfait-16

https://preview.redd.it/6k6nxcnrx1bh1.png?width=1062&format=png&auto=webp&s=5386f71477c526f5ad38051b053c6fcba8d09c85

It's pretty clear that Wakana is referencing something, but what is it?

edit: it's from chapter 68

Every post i've done in the past few months got immediately deleted. and it seems that people can't even see my comments