This is a famous work depicting the Ryōgoku fireworks. Just as the Sumida River fireworks bring joy to many people even today, people in the Edo period also looked forward to the art of lights set off in the night sky. A large wheel-shaped display of fireworks, which is called "poka-mono (crack shell)," is drawn in the picture. The Edo period saw the advancement of fireworks technology and fireworks were made and fired not only in Edo, but also in the present-day Nagano and Aichi Prefectures.