Note: The jar that Haruka (pink hair) tries to give to Kaoruko (yellow hair) says “name-take umai” which means “name(ko) mushroom flavor”

Indeed, there is a drawing of nameko mushrooms on the label.

I’m not sure what the deal with Haruka and mushrooms is, although there is an unproven phallic subtext.

But mushrooms and fungi are very nutritious… The ones that don’t kill you anyway.