Bar Lupin sounds like a fascinating time capsule of literary Tokyo - a place where Hemingway himself supposedly tipped back drinks alongside famous Japanese writers since 1928. While we had to skip it because we had the kids with us, it's exactly the kind of place that makes Ginza interesting after dark.
They're still mixing up old-school cocktails like Moscow Mules and Charlie Chaplins behind that vintage wooden bar, maintaining that Shōwa-era atmosphere that's getting harder to find in modern Tokyo. The kind of spot where you can imagine all the stories and conversations that have happened over decades of drinks.
Definitely one to save for an adults-only evening when you want to experience a slice of old Tokyo's drinking culture.