How Can an Old Enemy Become a Wife [ABO]

Fu Buwei has a rival, Jiang Han, who is equally powerful. As his name suggests, Jiang Han is as cold as ice. He is a sharp blade with a shining cold light from the Imperial Academy. Fu Buwei's undefeated number one performance was shaken when he met Jiang Han, but he was full of fighting spirit and fought with Jiang Han all the time. The two were entangled from the first level to graduation. He originally thought that they would continue to fight as old enemies endlessly throughout their lives. In the second year after graduation, Fu Buwei received the news of Jiang Han's death - that shining and unparalleled imperial blade fell for unknown reasons. Fu Buwei was shocked. Fu Buwei couldn't believe it. Fu Buwei had to accept the reality. On the first day without Jiang Han, Fu Buwei felt empty. The next day without Jiang Han, Fu Buwei was lonely. On the third day without Jiang Han, Fu Buwei was in a daze. He thought his whole life would continue in such a boring way, but Fu Buwei had an accident during a mission to encircle and suppress star thieves. When he opened his eyes again, he unexpectedly returned to ten years ago. Ten years ago… Fu Buwei's spirit was shaken, and he immediately went to find Jiang Han, his old enemy who had not seen him for three years. In his imagination, Jiang Han should be like him, coming from a wealthy family and possessing countless resources, until he saw a half-grown boy curled up dying on the street in Slum Star. Fu Buwei: "...?" This was different from what he thought. For the eternal battle between the old enemies in the future, Fu Buwei brought Jiang Han back, who was in danger, to heal his wounds, read to him, give him clothes, and give him everything he should have. This time, he's going to train his nemesis himself. Fu Buwei waited and waited, and finally waited until Jiang Han turned eighteen and came of age. However, that night, Jiang Han, who was supposed to be Alpha, suddenly transformed into Omega in front of him. Fu Buwei: "?" Then he appeared on Fu Buwei's bed. Fu Buwei: "??" The once frosty Imperial Blade knelt in front of him, like a rose waiting to bloom. Fu Buwei: "???" Wait—— An old enemy is an old enemy. How can an old enemy be your wife? Intention: love love love love