The Great Magician from Thousands of Years Ago Became an Ordinary Person

[Western Fantasy + Magic Academy + Boss Pretending to Be New + Slow Heat + 1v1] Gu Xier, with 250 magic particles, is at the bottom of the entire academy. In fact: she is Gu Xinar, the great magician from thousands of years ago. Cursed to lose his powers, he comes to school just to find someone. Later, he was found, but he lost his memory and turned black. Gu Xier:...... Xavier: Were we lovers before? Gu Xier: No. Xavier: I don't care, it must be. Gu Xier:...... Ps: Completed status