Can you recommend some mature fantasy novels from another world? Furthermore, it was best for the main character to use a sword or a mage. He should not be too promiscuous or childish. Please give me a high-quality recommendation. Thank you.

😋I recommend the following three novels to you: 1. "Ring King: Killing the Emperor in a Different World": This was a mature fantasy novel about a different world. The main character was a royal youth with a special mission. As he grew up, he understood the hearts of the people, took on the mission, and was hot-blooded in battle. The main character uses a sword, which fits your requirements. 2. "I'm a Beautiful Man": This was a fantasy novel about a foreign continent. It was about a boy who had lost his memory and had a useless physique. He grew up and eventually comprehended a new martial technique. The main character is immune to magic, which meets your requirements. 3. "The All-knowing Archmage": This is a fantasy novel about swords and magic. The protagonist traveled to a parallel world in the European Middle Ages and became a sorcerer who was oppressed by the royal family and sects. In the end, he became a wild sorcerer demon and became one of the three apostles of the Shadow Sect. The main character is a mage, which meets your requirements. I hope you like this fairy's recommendation. Muah ~😗