By Ch 74 we see a name-dropped (& gender-swapped) 'Merlin' who seems to fill the now important role of cliche 'selfish, powerful, well-informed, potentially world-destroying-in-pursuit-of-her-goals' villain. Really? And of all the territories, she's of course of course been eyeing the MC & his tiny region. Whatever.

- he judge it hard for a group of orphans to survive in the outside world, so he stayed under the protection of the griffon and teach the children the necessary skills to become self-sufficient (this is not hypocrisy, but rather simple humane charity, like how you would donate money) meanwhile helping himself to survive too (building close relations to others as a mental relief and working together to suffice physical needs)

-he accepted Tetra despite himself doesn't have romantic feelings to her. To be honest, where in the world would there really be a couple who are mutually in love with each other before they started dating? In extremely rare conditions, yes? Further more, by the time of the story, the MC is already around 30 by mental age, would he really be capable of fierce romantic relationships? Thats why later on, when the princess fall in love with him (with enough reasons: 1. First friend and a long time friend, which means he is an important figure in her life, 2. He's is strong, which is a major criteria in choosing mate in classical eras), he will accept her as 1. He doesn't really has loyalty bound to Tetra as he is not romantically invested, 2. The world he lives in supports polygamy, there is no moral values restricting him. He wouldn't really have a reason to reject the offer, didn't he?

-after the first war as a king, he purged those of the opposite factions without mercy after them not swearing their allegiance. As a king of a country, for the responsibility to prevent any civil wars from happening and for his own interests (the safety of himself and his family), his merciless act can only be judged as a logical yet unethical way.

-And under a necessary amount of 'luck'- which is him meeting influential people, getting some strong yet not op skills, and finding good opportunities- he succeeded in becoming a great king and eventually the founding father of an empire. This is not "plot armor" but rather what makes some of the rl great people in our history great — opportunities, relationships, and skills. When all of these things align together well, it made the legend of roman empire feasible. Although the chances of them aligning perfectly is rare, but it is only natural for a "story" to be depicting such rare occasion.

About the world, currently its size is similar to Earth (I mean our world) and there are 2 gigantic empires in the story which is respectively, Persas (Persia) Empire and Scarlet (Chinese) Empire in the far East. So the kingdom (future empire) of our MC is based on the Roman Empire and he will probably establish the 3rd Empire and superpower in the world. At the current raws, the MC already founded his Kingdom which is named as Romarian Kingdom. He establish it after conquering the various nations and Kingdoms surrounding his territory. Well he was able to raise his Kingdom to be the strongest in their region after just a few years from just a small kingdom. Also the current name of our MC is quite long XD. Almis Julius Ars Rosaith Caesar. He had two wives and currently has 5 childrens already and there is also his mistress (The Spider Beast Woman). Oh yeah, the Emperor of Persas is Xerxes. XD

Why would they give a Villian with a personality of Tyrant an event where he hesitate to kill a young girl and let her go? When someone have blood on their hand and great ambition, they don't just let something as the young girl go, they either sell them or grow them up so that they can use them later. That is what a Tyrant do. Don't give them a sob story when they literally pillaging everyone and put heavy tax on people. The only way that the girl escape should be that she able to outwit the enemy with her wit and great will to survive. Heck, you can even go with her being in Griffin (known and feared as divine beast) territory and the tyrant give up chase, not because the tyrant suddenly got soft heart for young girl.

Why would the king/tyrant negotiate with a defenseless village when he got a great army, many war experience? Why would he allowed them to self government? Are you for real? When a tyrant negotiate with someone that obviously weaker than them, they don't just allow you to have nice thing such as "self government". You submit or you die, that's it. How did you f*ck that up so bad?

You are in a fantasy world, you have introduce a fantasy beast known as Griffin yet why the f*ck are you ignoring all that and went with normal animal right after that instead? Did they change the author or something?