One main element is his difficult upbringing in poverty - stricken surroundings. Another is the constant bullying and discrimination he endured due to his physical appearance. And of course, his strong bond with his sister Daki. This bond was what drove him to protect her at all costs and also influenced his actions as a demon. For example, he would go to great lengths to avenge any harm done to her because of their shared experiences of being outcasts in society.
Gyutaro was born into poverty. He and his sister Daki had a very tough life. They were constantly bullied and looked down upon. Gyutaro had a deformed body which added to his misery. He was filled with hatred towards the world that treated them so badly. In order to protect his sister, he became extremely violent and cruel to those who he thought were threats. His experiences in his early life shaped him into the demon he later became, using his powers to lash out at those he despised.
You can start by observing the typical features of a Simpson character, like the big eyes and spiky hair. Then, sketch out a rough outline of your face based on those features.
Comic Sans is cool because it adds a fun and informal touch to things. It's not too serious and can make text more engaging. Also, it's easy to read in some cases.
Overall, the sousou no frieren manga sticks closely to its source material. There might be some minor tweaks for artistic or narrative purposes, but they don't deviate much from the core.
A brunette manga girl often has dark brown or black hair. She might have big, expressive eyes and a unique style of clothing that reflects her personality.