Volume 15 - Part 1:

[3%] what sort of dish the girl she would make with the ► Remove either the girl or she. [55%] sauteeing this with just pico leaves for flavoring,” ► It should be pepe leaves? [65%] of course,” Reina Ruu replied with with a smile, ► Duplicate with. Already reported.

@legitpancake
Thanks for the info. I'll update my OP.

Quite a weird series. It started as a silly and light-hearted read, but oh boy does it get dark occasionally later on.
While having below average quality of the prose, it is surprisingly well thought-out thematically, being one of the few series where "no killing" policy actually does make sense narratively. It also has a whiff of persian mythology, which is pretty rare in LNs.

It is also complete at 6 volumes, reaching intended stopping point.