Theme song "King of Machine War": [Singing] Han Chengdong [Lyrics and Music] Wang Wei [Arranger] Chen Jia The bright starry sky, the proud rainbow, the wind blowing up, the dust and the heartbeat, the horizon, the horn of battle cuts through again Embark on a journey in the sky to find my dream. Traveling through time and space. Burning in the game sky. Fighting on the battlefield. Asking who is the hero. Booming and rumbling. Heavy artillery fire is roaring. Climbing to the top. The world below is completely different because of me. Rush forward with me. The life and death of brothers and *** The flags are dancing in front, and rushing forward again. For the eternal dream in my heart, I will go forward with all my strength. Ending song "Promise": [Singing] Chen Jieli [Lyrics and Music] Wang Wei [Arranger] Sui Xiaofeng The sunny day and the rainy day ended again Let’s re-enact nostalgia last night. Meteors streaked through the clouds and smoke. I always pass through the bright starlight in my dreams. When I wake up, the dusty promises appear in front of me. Waves roll over the sea and listen to the thoughts of the wind. I only think of your face when I travel through the world. I look up and see the wind, flowers, snow and moon in the sky. Looking back, I find that you are there. Beside me (music) always travels through the bright stars in my dreams. When I wake up, dusty promises appear before my eyes. I have gone through vicissitudes of life in search of eternity. The promises I have made are becoming more and more distant. The waves are crossing the sea and listening to the thoughts of the wind. I have only traveled through the human world. Thinking of your face, I looked up and saw the wind, flowers, snow and moon filling the sky, and when I looked back, I realized you were by my side