On September 1, Shinobazu Brewery Hitsujiaisu in Taito Ward, Tokyo, introduced a new beer on Instagram: "Risshu Bakushu." The post describes it as a collaboration beer made with fresh hops grown and harvested through the Shinobazu Hop Project. It is presented as an American lager-style beer with 6.23% ABV.

The brewery says the beer brings together autumn-like richness, soft acidity, and a bright hop aroma. That description suggests a clean, hop-forward beer with enough roundness to match the changing season.

Hitsujiaisu is a self-brewing beer and lamb-focused venue in Ueno. Its official site frames the brewery as a project born from a desire to support the Shinobazu Pond neighborhood. Against that background, this release fits neatly into the brewery's local approach: a beer that connects the taproom, the neighborhood, and the people growing the hops.