Otsuka Shuzo was a brewery that had a brewery in Bando City (formerly Iwai City), Ibaraki Prefecture. It was known for its representative brand "Shuroku," but it closed down in 2011 (Heisei 23) while being missed.
Currently, the site has been regenerated as "Bando City Tourist Exchange Center Shuroku," and is familiar as a tourist facility where you can visit sake brewing tools and historic buildings.
The brand "Shuroku" was reprinted by Raifuku Shuzo in Chikusei City due to strong local demand, and its name and history are still inherited in the region.