According to Derailleur Brew Works' post, the main highlight this time is the cross-collaboration beer "NISHIE" by Miyazaki B.M.B BREWERY × Osaka Derailleur Brew Works.

The beer style is Juicy Tropical Sour, with ABV 4.5% and IBU 0. It uses passion fruit puree, guava puree, and sweet orange peel, aiming for tropical fruit character and a gentle acidity. The product description emphasizes the balance of sweetness and sourness, along with a smooth mouthfeel, showing a direction that should be easy for craft beer beginners to approach.

Advance pours will take place at the two venues for "DOUBLE TAP TAKE OVER." On March 6 and 7, tap advance service will be held at IBREW YOKOHAMA in Yokohama, and on March 14 and 15, the event will be held at iiie in Osaka's Amerikamura, where advance sales of 350 ml cans of "NISHIE" are also being announced. The post also clearly notes conditions such as "tap only advance" and "event limited," so the experience changes depending on when you attend.

Derailleur Brew Works describes itself on its official website as a brewery based in Nishinari Ward, Osaka City, and says its name comes from the idea that "those who stray from the path are the ones who choose their own way of life." Its signature style is concept-driven planning that goes beyond standard templates and collaboration designs that bring in outside players. This "simultaneous two-city, limited early release" is the kind of event that lets people experience that personality firsthand.