Operetta52 is an Italian bar on Midosuji in Osaka, near Ohacstenjin and JR Osaka Station, serving duck gyoza and duck dishes with wine. The menu includes duck white bolognese, duck confit, and duck prosciutto. The red interior follows a small opera house concept, with semi-private couple seating and chandeliers. On weekdays the room is nearly full around 9 p.m., and many guests book ahead.