So it's a kind of symbol to express a situation on a story. Yes, there are a lot of Chinese restaurants. It takes less than an hour from Tokyo station. Night before the Carnival where Aeka appears wearing two candles on her head. I have seen this in Urusei Yatsura also.
Women use a pole with a curved blade on the end as a weapon.
Naginata outranges normal swords, so it was frequently used at old battles. Especially, naginata was effective at naval battles and cavalry battles. However, it became an old-fashioned weapon after the appearance of firearms. In the Age of Provincial Wars, guns became the leading part of Japanese wars, and naginata and spear-fighting declined day by day. In Edo era, naginata was learned by noble women of samurai class, as one of female accomplishments.