You Are Responsible for Shining, I Am Responsible for Bringing Glory to the Country

This is my first time writing, so please forgive me if the writing style is not very good, but the content and subject matter are still very touching. A promise made when they were young made the male and female protagonists meet again, and because of this promise, the heroine became the hero's light and saved him. Because of this promise, both of them have a direction to work towards. In the end, one became a shining star, and the other became a world champion who brought glory to the country.