Rebirth of 50: the Cold-Hearted Cub Is a National Treasure Scientist

[The world-weary and indifferent little pitiful + empathic twin brother + gentle and firm scientific research family + cub development system] Yoyo was reborn and returned to the time when she was four years old, still trapped in a nightmare farmhouse. In her previous life, she was stolen by a sinister nanny when she was just born, sold into a family that favored boys over girls, and was abused. She ran away at the age of twelve. Although she was secretly trained by the state to become a mechanical genius, she still chose to end her life at the age of sixteen. Fortunately, the cub cultivation system was with her to bring her back to life. In this life, she was cold-hearted and just wanted to escape. Little did he know that her parents, who were both scientific researchers in Beijing, dreamed of her miserable past life at the same time! The professor's father and mother were so anxious that they searched thousands of miles for their daughter! After being taken back to a strange family, Youyou closed herself off and shunned others, but unexpectedly discovered that her twin brother, who looked exactly like her, could truly feel all her pain and despair... How can a little cub who is world-weary and indifferent be melted by the love of his family? How will brothers and sisters with two-way sensing save each other? Let's see how Zaizai hides his genius mind, silently accumulates strength, and eventually becomes the country's secret treasure! (System routine: "Zai Zai, you have to work hard to survive today!")