The male protagonist and the female protagonist go to the same high school. The female protagonist is one grade lower than the male protagonist. They fell in love when the male protagonist was a sophomore in high school. However, the female protagonist suddenly broke up a month later. The male protagonist couldn't accept it and ran to the rooftop to get some fresh air. Accidentally awakened the most powerful system in all worlds. Want to take revenge on the heroine? Little did he know that the heroine chose to break up with him because she suffered from severe depression. Although the male protagonist talks about taking revenge on the female protagonist, he keeps helping the female protagonist when he wants to take revenge on the female protagonist. But the male protagonist became ill because of longing for him, and finally suffered from sunshine depression. By chance, the heroine discovers the hero's illness, and the hero finally learns the reason why the heroine broke up with her. In the middle, the male protagonist was admitted to the hospital for blocking the female protagonist's knife. The male protagonist was always in trouble, but later on, the male protagonist miraculously woke up with the female protagonist's persistence. In the end, with the help of the system, the male protagonist became the richest man in the world and the only remaining immortal cultivator in the world, and helped the female protagonist to also cultivate immortality. Give the heroine a wedding of the century, and finally live happily together.
