After protagonist Lin Yifan transmigrates to a world resembling One-Punch Man, he plans to find Saitama and live a quiet life. But not only does he fail to find Saitama, he’s killed a year later by aliens invading Earth. He is then reborn one year earlier, activates the Dragon Ball System, and starts off with the Kaioken and Saiyan bloodline.
This time, he decides not to eat beef. (The author got the power levels wrong. In Dragon Ball, an ordinary person’s power level is 5. I always thought it was 1, so I exaggerated the power-level numbers. Sorry about that.)