Dragon Ball: the Strongest Challenger in the Universe

My name is Ling Tian, ​​and when I woke up, I became the Raditz who jumped out at the beginning in the Dragon Ball world and had a hair style like the non-mainstream originator of the Saiyans! A scumbag with only 1500 combat power? And with a humiliating record that cost people their lives? Fortunately, the "Strongest Challenger System" arrived in time - challenge the strong and get generous rewards! However, the target must have fighting spirit. If the same person's CD is one year, the reward will be reduced if the difference in strength is too large. Looking at the few pitiful light spots on the earth on the detector, Raditz (Ling Tian) grinned: Kakarot, my dear Oudou, my brother is here to "discuss" with you! Let's start with you to earn rewards! Therefore, when Raditz came to the Turtle Fairy House, there was no arrogant "fight against the five scum", but only a sincere "brotherly recognition" and "invitation to discuss." The naive and bellicose Wukong readily accepted the challenge. During the battle, Raditz went from faltering to gradually gaining control of his strength, and finally won with one blow! Bite! Challenge 'Sun Wukong' successfully! Get the reward: Kaio Fist without side effects! Feeling the surging power in his body, Raditz cast his gaze into the distance: Piccolo, Vegeta, Frieza... Even Angel, the God of Destruction, and the All-King! You are all stepping stones for me to become stronger! This is the story of a (pseudo) villain brother who relies on "friendly exchanges" to defeat the entire universe step by step and become the strongest!