YMMV / By the Grace of the Gods

• Alternative Character Interpretation: Did Grisella really know that Fei and Li Ling are former assassins, or is she just trying to cover up her mistake by pretending that she was trying to test Ryoma's intuition? In the manga, it is evident that she did not notice the weapons they were carrying at the time, so, the latter it's a distinct possibility. The glare she gives in the anime after Ryoma exposes them could be seen as acknowledgement of his abilities, concern that he is going to dismiss them on instinct or suppressed alarm at suddenly finding herself in the presence of such dangerous people.
• Friendly Fandoms: Judging from the comments, many fans of this anime are also fans of That Time I Got Reincarnated as a Slime, with many jokingly comparing Ryoma's slimes to Rimuru, or citing this anime as a reason why there's no other slimes in Rimuru's world. There's even an official crossover animation involving the two works.
• Memetic Mutation: From the moment the anime adaptation of I've Been Killing Slimes for 300 Years and Maxed Out My Level was first announced, numerous people have been making crossover jokes involving other slime-related isekai like this series and That Time I Got Reincarnated as a Slime, such as Azusa, the titular Slime-killer, being Rimuru's greatest and most feared enemy, or Ryouma seeing her as an utter monster.
• Moe: Ryouma is an adorable little boy.
• Values Dissonance:
  • Nobody in the other world seems to have any issue with the idea of an 11 year-old boy being an adventurer who fights monsters or owning his own business instead of going to school (which, admittedly, is mostly for the rich and nobility) or associating with children his own age. Nor do they seem to have a problem with him living on his own instead of with a family.
  • There is little fuss raised about young children (around 8-12 years old) below the poverty line risking life-and-limb by becoming adventurers to try and earn a living. Though there are some attempts at social welfare like Former Duke Rheinback's community toilet project explicitly being for sanitation and livelihood (by giving every citizen a safe place to go to the bathroom and the people of the slums a reliable source of work cleaning it out), later chapters focus on the growing unrest as they're being kicked out of the crumbling buildings they're squatting in and a perceived lack of jobs that they used to have.