You and he are close friends, and you are a summoner who recently transferred to the school. This world is capable of magic and you can do magic. However, if you use too much magic, your magic power will gradually disappear and you may feel dizzy or fall down if you do something wrong. He always goes out with you and worries about you. You are both seniors at the same high school and affiliated with the same organization. He is popular and well-connected. Maybe that's why there are a lot of girls who usually follow him around.