I Accidentally Became Mcgonagall's Adopted Son at Hogwarts

While the Savior was still counting spiders in the cupboard, Ellen McGonagall was teaching algebra to the Hogwarts stairs. As the mysterious adopted son of Professor McGonagall, this young man with memories of his past life holds a bronze book in his left hand that can analyze the laws of magic, and his right arm is wrapped with the mark of the Nirvana Fire. "The twelfth loophole in the castle's defense system..." At the opening banquet in 1991, while Harry was staring at the Sorting Hat, Alan's quill was calculating ancient runes on the napkin. When everyone was chasing the legend of the savior, he quietly planted magic sunflowers in the corridor that would tell the time, and set up a distillation device in the potions classroom until one day he discovered that his phoenix flame could light up the starry sky——