The Servant of Evil ~Opera Buffa!~

悪(あく)ノ(ノ)召(めし)使(つかい)～(～)おぺら(おぺら)ぶっふぁ(ぶっふぁ)！(！)～(～)aku NO meshitsukai ~opera buffa!~

978-4048662352 (volume 1)
978-4048690874 (volume 2)

The Servant of Evil ~Opera Buffa!~ is a two-volume comedy manga series by Megane Inu (眼(め)鏡(がね)犬(いぬ)megane inu). It's part of the Comedy of Evil project alongside Aku Musu. After being serialized in Blitz G's Comics NEXT, volume 1 was released on February 27, 2014, and volume 2 was released on January 27, 2015.

Scanlation (incomplete)