Invincible at the Start

Wang Kai achieved results in 2078. At this time, he has two options: one is to practice and become an immortal, and the other is to start a new game. But he thought of his elderly mother who had never bought a few pieces of clothing in her life because she was still running around at an age that should have been comfortable, so he chose the latter, commonly known as rebirth. So how did he help his old mother live a good life step by step? Please update. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.