B turning into an O (he'll turn back into a B later), groveling pursuit, melodrama, a touch of a reverse harem, both leads' first time
After losing his memory, Lan Tang spent three years by Fu Sinian's side, believing that he was a warm haven. But when his memories returned, he discovered that Fu Sinian was calculating and put profit above all else. Fu had even indirectly made him an omega whose every move was restricted, and made him forget his true first love.
So Lan Tang did everything he could to make this arrogant alpha fall in love with him, then ran away on the eve of their wedding and appeared at his first love's bedside.
Fu Sinian, who had always stood above everyone and controlled everything, finally realized that there were people and things beyond his power. At last, he lowered his head and humbly begged Lan Tang for forgiveness and love.