I Only Have One Wish, I Want to Become a Knight

"If you got to choose between two jobs, what will you choose? A "Hero"? A "Demon King"?.” The god asked. "I wouldn't choose neither of them" Rei shook his head, refusing to choose between those choices. "Then what will you choose?" "Heh, I choose to become the strongest knight!" Rei exclaimed with a wide smile. ** Kiritsuka Rei, 15 years old, caught into a car crash after saving a girl’s life. His soul was pulled by the god who claimed to be the God of Fire—Ifrit. He was told that he will be reincarnated into another body and hoping to have better life there by the god. Before that though, Ifrit ask him to have one wish before going. Rei responded by expressing his wish to become the strongest knight with his own hands. Ifrit who already knew about his answer laughed and so…he answered his wish then transferred his soul to the world called Astria. After the soul transfer succeeded, he found out that the body he reside in have another soul that comes from the future? And his job would be a "Blacksmith"? Furthermore, the world is based on an Otome game? What will happen to Rei? Can he overcome this new path? Follow the adventures of Rei and him overcoming the path that he will take to become the strongest knight with the job of blacksmith in an otome game. Disclaimer: cover belong to the artist and author. *Note: This will be my first time creating this story, this story focusing on two sides which is the MC–Rei and the Heroine.