From the Sumikko-gurashi characters: えびふらいのしっぽ (Ebifurai no Shippo, or "Fried Shrimp's tail")
Too hard to eat and left unfinished.
Ebifurai no Shippo and Tonkatsu are friends who understand each other very well.
Furoshiki (風呂敷) is a type of traditional Japanese wrapping cloth that is often used as a gift wrap, or to transport clothes and other goods. It is not uncommon for some contemporary Japanese people to use furoshiki to wrap up their meal bento box.