Я — лакей в другом мире.

Starting Off By Surrendering to the Demon Lord / Dân Văn Phòng Chuyển Sinh Thành Dũng Giả / An Overtime Salaryman Is Reincarnated as a Hero / Dân Văn Phòng Chuyển Sinh Thành Dũng Giả / I'm a Lackey in the Underworld / Overtime Office Worker Reincarnates as a Hero / Overtime Salaryman Reincarnates as a Hero / The Overtime Salaryman Reincarnates as a Hero / 我在异界当走狗 / 残業サラリーマン、勇者に転生する