"Ugh... Damn it," Leon began clutching his head in pain and woke up in surprise. "Wait, where am I? Is this a hospital? But I'm sure I was stabbed in the back with a dagger!" Leon was a young man living on Earth and was an Olympic champion in swordsmanship. On his way back, he encountered some men harassing a girl.
Leon intervened and tried to save the girl until one of the men stabbed him in the back, causing Leon to lose consciousness. Leon started thinking about where he was until someone knocked on the door. Leon said, "Come in." A man with light glasses entered, accompanied by a tall, burly man. The man with the glasses asked Leon, "Sir Alexander, are you okay? Have you recovered from your injuries?"
Leon was surprised that this person was calling him "Alexander," then Leon asked, "Who are you, and where am I?" The two men were shocked and looked at each other at the same time. Then the man with the glasses said, "It seems you have lost some of your memories, sir, but let me tell you the details..." The man with the glasses introduced himself, "I am Leonard, sir, and this big guy next to me is Victor. We are your personal guards, and you are Alexander de Marcus, the famous and well-known marquis' son, Marcus..."
Alexander interrupted Leonard and asked, "And why am I injured like this, Leonard?" Leonard paused for a moment and then replied, "Actually, sir, after your father, Marquis Marcus, passed away, your uncle took over the castle, claiming you were weak and unfit. When we tried to stop you, you insisted on going alone. Your uncle Gabriel was a top-tier first-class wizard, and you were only a minor wizard..."
Alexander thought for a moment and then said, "Okay, can you tell me where I can find a library in this castle?"
Leonard was surprised by Alexander's question and replied, "But sir, your wounds haven't healed yet, and you need to rest..."
Alexander said, "It's okay, I know what I'm doing..." Then Alexander got up and, using the little information in his memory, started to find the library that Alexander used to go to often. Alexander left his guards, Leonard and Victor, guarding the door and then entered the library.
He found thousands of books. "It seems that Alexander's father, Duke Marcus, was a book enthusiast." Alexander began searching for the nature of this world and didn't want to ask Leonard so that Leonard wouldn't suspect Leon. During his search, he found a book called "The Truth of the Magical World." It was a worn-out book but had a golden color and shone from the outside...
Leon grabbed the book and started reading it... Nine hours passed, and Leon finished the book. He took a long sigh and then said, "So this world is like the medieval worlds, but the difference is that something called the 'World Turning Point' happened. The world became filled with strange monsters, and a few people had the magic trait, which is a talent acquired by chance at birth. Those born with this trait are called 'wizards,' and the energy they use is called 'mana or magic.' The wizard's power is divided into nine levels, and each level is divided into branches (lower, middle, upper, peak). Each wizard is named by their branch and level. I am now a first-level minor wizard, and my uncle Marcus is called a first-level peak wizard. The amount of magic varies from one level to another depending on each person. Someone at the lower level in the middle branch might defeat someone at the upper level, but it's difficult to defeat the peak, and it's impossible to defeat the peak. The difference between the first and second levels is like the difference between the sky and the earth..."
Then Alexander said, "Okay, now I need to go rest a bit. That's enough for today..." Alexander left the room and found Leonard and Victor waiting for him. He took them until they reached his room's door. Before Victor and Leonard left, Alexander stopped Leonard and said, "Leonard, I want you to gather all the important reports about the castle's situation and try not to let any of my uncle's men know..." Leonard nodded and bowed, then said, "As you wish, sir," and left.
Alexander entered his room and muttered, "It seems my new life won't be easy, especially since this era is filled with blood and ruthlessness. I must be tougher than anyone else so that I don't meet the same fate as in my previous life. Now I am no longer Leon; I have become Alexander..."
Then Alexander fell asleep...