Onna Kajishi wa Ohitoyoshi Guild ni Hirowaremashita ~Shintenchi de Ganbaru Kajishi Seikatsu~ - Vol. 5 Ch. 26

[MangaDex]

 

[GreenDude1]

So that's just confirms what I said in the previous chapter about the sister being the one behind it all. I'm guessing that the Demon King used to wield a sword that was made by his sister and when he changed to a sword made by a different woman she got really mad and jealous and made the demon sword to try to kill that person. Of course when she explains this everything will immediately be forgotten despite the fact that she will definitely try to kill the MC a couple more times.

 

[grrman]

Man, the Demon King is chill af and I love it.

 

[AnnePackrat]

This can’t end well.

 

[Firestorm252]

Iblis' internal monologue: "also I wanna get mad flirty with Anna "