As of August 2026, Nagomi Yoneya is offering a seasonal yokan called 水底のかくれんぼ.
This kingyokukan — a clear agar jelly — depicts goldfish swimming through water. With a ramune flavor and a clear, cool-looking coloring, it makes for a refreshing bar-shaped confection (棹菓子) suited to summer.
The yokan is available for a limited time, through around late August.
It can be purchased through the Nagomi Yoneya online shop.
Note: Product images are for illustrative purposes. Actual design and specifications may differ slightly.