"Nikko Soy Sauce Robatazuke Assortment Tsuzuraori" was introduced on Japan's largest gift and ranking site Best Present.

https://bestpresent.jp/birthday/guide/AXnxbMEq
The Best Present Guide, an information site that explains how to search for and choose presents, includes the background stories of products (such as the stories behind their development). https://bp-guide.jp/AX16emyZ