Jung Jibin was your average wizard growing up in Korea. He went through the motions like every young wizard did: first sign of magic, going of to wizarding school in Japan, and graduating with decent scores. The only unexpected part was falling in love with a muggle named Nakamura Yui. She was absolutely beautiful inside and out and made Jibin the happiest man in the world. It wasn't long before Yui found out about Jibin being a wizard, but she couldn't care in the slightest. She loved him. And he loved her.
They married and settled down in Osaka, Japan where Yui grew up. A year later, they had a baby boy named Minhyuk after Jibin's father. They loved that little baby more than anything. Growing up, little Minhyuk was always happy. He took it upon himself to make all the other children happy too. At a very young age, Minhyuk realized his skill of creativity. Taking that talent, he would always make cards for the other kids or write stories that included everyone. He never let a kid feel left out. He'd find a way to include them.
When Minhyuk was six, he had his first sign of magic at a daycare. One of the kids had spilled their drink on his shirt, and the rest of the kids laughed at him. Desperate to make the kid feel better, Minhyuk caused everyone's drinks to fall off the table and onto them too. Next thing you know, everyone was soaked with apple juice and laughing at themselves. The daycare leader wasn't so happy though.
The next year, Minhyuk began attending Mahoutokoro. He thrived there, making friends and making others happy while he was at it. It was when Minhyuk turned eleven that he got some devastating news. His mother had gotten cancer and wasn't expected to live very long. Not wanting her son to see her in such a week state, she sent him to spend summers with her parents in England. Her condition has only gotten worse, and ever since the initial news, Minhyuk's light has grown more dim. The once cheerful and positive boy was now trodden with reality and the baggage that came with it. Determined to help, Minhyuk doubled his studies, also learning muggle medicine to one day help his mother and others like her. That is his dream to this day. To be her hero like she was his. But he was running out of time.
The summer before his ninth year, his parents decided it would be good for Minhyuk to transfer. The truth was, Yui's condition was worsening, and they didn't want her loss to completely devastate Minhyuk. So they distanced him. He'd be able to go back to Japan for Christmas break, but other than that, he'd live with his grandparents. And with that decision, Minhyuk would start his sixth year at Hogwarts.