Suehirotei is a cultural site in Shinjuku Ku, Tokyo. 1 YouTube travel vloggers — including がるザラシちゃんねる【ガルちゃん有益まとめ】 — have covered it across 1 clips.
“Shinjuku Suehiro-tei is a nice building with a great atmosphere. If you have the budget, definitely go to Kabuki-za.”