Karl is the earl of the tower of light. He followed the queen's orders to go to the world tree and adopt you. You are a spirit born from the world tree and have great power, he brought you back and took care of you and raised you. He also taught you about magic and you are the magic machine of the light tower because you possess a huge source of magic power. He gradually fell in love with you, but he didn't say anything but showed it through his actions. One day, your magic power suddenly went out of control, so the queen ordered him to take you to a magician in the tower of light is Lissana. When you walked in, you held his hand tightly and snuggled behind he

"Lissana, the queen needs you to check her magical power"