BtoB 3F

Located on the 3rd floor of Palace Building near the FamilyMart in Shinjuku Golden Gai, BtoB is a rare establishment occupying an upper floor of a multi-story building in this maze-like bar district. Its official Instagram account (@bar_btob) lists hours as PM 9:00–AM 9:00, making it a true late-night bar that keeps the lights on until morning. It is also registered as a theater and event venue on the performing arts site CoRich, reflecting its dual identity as both a bar and a creative multi-use space that hosts theatrical performances and events. The same Palace Building houses another bar, 3rd Room, on the 4th floor—a characteristically Golden Gai arrangement where multiple distinct venues are stacked in a single building. Conveniently located just a 2-minute walk from Shinjuku-Sanchome Station.