Saikyou Juzoku Tensei: Majutsu Otaku no Utopia

Synopsis:

After being struck by a truck, a high school student who was enamored with magic was born in a different realm. He was born into the Marren Clan, a tribe of magic users, and currently goes by the name Abel Belek. Due to his prior life's fascination with magic, he spent his days learning magic under the guidance of the village chief. He shown a great ability to use magic, astounded both adults and children, and declared this world to be his heaven. However, when he turned sixteen, his father informed him that he was to marry his needy younger sister in line with clan customs. He chooses to escape to the city against the customs and rules of the hamlet because he does not want to live up to his family's expectations and because he is crossing boundaries. The narrative then really begins.