Review Detail of Ryan_Av in Obtaining 10x rewards! Reincarnated into a novel as a side-character!

Overall the story is good except for the fact that the author made the age of the characters be 6 years old. If you Google it, most children learn to read at 6. However, for some reason, the author made these 6 years old able to hunt demons, have complex emotions and thoughts, a 6 year old girl went down the mountain by herself, tried solving her clans financial problems, and these 6 years old children are building muscles that are strong enough to wield swords and slice people in half which is ridiculous. The protagonist is also plotting revenge against 6 year old kids which is so petty. Imagine an adult trying to get revenge on children which is ridiculous.