Umareta Chokugo ni Suterareta kedo, Zensei ga Taikensha datta node Yoyuu de Ikitemasu - Vol. 3 Ch. 11

[MangaDex]

 

[Dosky]

I bet one of the hero's harem members was a demon, how could he have exterminated them?!

 

[MavroVulpis]

Ah, yes. "A good demon is a dead demon"

 

[ForTheJerusalem]

Remember kids, genocide is only bad when the other side is human!