share time: 2025-10-31 00:31:56
Rong Yu, a legendary mathematician from the early days of the People's Republic of China, died in a car accident saving her son. When she woke up again, she found herself as the “easy target” great-grandma of the modern Ji family—relatives dismissed her as a burden, her granddaughter-in-law stepped on her to fight for family assets, and even her great-grandson was bullied at school! But who could have guessed that inside this “confused old lady” lived the genius mind that once calculated missile trajectories with just a pen? When greedy relatives tried to seize the Ji family's property and a naughty kid bullied her precious great-grandson, Rong Yu used game theory to expose scams, solved math problems to subdue rude neighbors, and even used a “logic trap” to stop her great-granddaughter's school bullying—turns out the most untouchable one is always the “old treasure” with hidden sharpness!
mute, 2x speed, if you want to adjust, please click the controller bar to adjust
full video
01:43:20
