I had the mixed offal lunch set (salt flavor) at Yokomachi Horumon in Itoigawa City. The contents of the offal vary depending on what’s available that day. On this day, I was told it included “marucho,” “oppai,” “donut,” and “hopchan.”

Yokomachi Horumon
2-13-18 Yokomachi, Itoigawa City, Niigata Prefecture
Google map: https://goo.gl/maps/LgdDHpU27LvmGa1u5