After Three Years of Killing at the Border, You Came Back and Asked Me for Military Exploits?

[Invincible horizontal push + magic gun blast + high martial arts] My name is Lu Feng, the unpopular son of the Lu family. Three years ago, he was transferred to the most dangerous border army. Fortunately, he had a killing system and a magic gun in his hand, leading the Seventh Army to kill through the entire abyss. Strange beasts, all the countries are frightened when they hear about them. Three years later, Lu Feng, who became the general of the Seventh Border Army, sent gifts back to his mother and childhood sweetheart who were also disliked. Unexpectedly, when she came back, her mother was scolded and whipped by her servants, and the soft ice armor she hunted for Qingmei was worn on her cousin. My father sneered and asked me to hand over my military exploits and help my younger brother join the Seventh Army in the Borderlands. The cousin laughed, we are all a family, it is better to give this soft armor to outsiders than to me. It is well known to outsiders that the Lu family has only one son who is about to join the Seventh Army of the Abyss. It wasn't until Lu Feng returned, wearing the rank of lieutenant general and holding a bloodthirsty magic gun in his hand, and ordered millions of troops to kneel down to pay homage, that everyone understood. The Lu family actually has a son who is the general of the Seventh Army of Shenyou! My name is Su He, and I am the number one scholar in the martial arts examination of the Dragon Kingdom. His Majesty the Dragon Kingdom has appointed the most talented person today to enroll me in the academy and give me a huge amount of resources. But I refused. I wanted to join the most dangerous border army because I wanted to find Lu Feng. Everyone said that Lu Feng would die early and he was not worthy of me. He asked me to enter the academy and become a martial arts god within ten years. But until that day, the Crown Prince of the Dragon Kingdom came to the sea of ​​clouds and brought His Majesty's edict, asking me to marry the Crown Prince and become the Crown Princess. A man wearing a black cloak and holding a bloodthirsty magic gun came. He took me and overthrew the entire Dragon Kingdom Forbidden Army with one shot!