The Ceo's Genius Personal Expert

In his previous life, biologist assistant Qin Yu encountered misfortune at the research institute due to an unknown creature called "Tai Sui", and was miraculously reborn back to his high school days. Seeing his parents again brought tears to his eyes. Returning to school, I reunited with my friend Fatty, and was amazed by my female classmate. However, when the school bell rang, Qin Yu discovered that he had forgotten to bring his homeroom teacher Lao Hong's biology book. This time, he is determined to seize the opportunity of rebirth and change his destiny!