Reborn as a Child, the School Beauty Qingmei Teased Me Since Childhood

[Rebirth + childhood sweetheart + single heroine + campus + two-way running + pure love + top student + yandere] In his previous life, he was blown up into fireworks by tertiary butyl lithium. A thirty-year-old doctor of chemistry was reborn as his six-year-old self. This time, he just wanted to escape from the laboratory and jump into the computer world, write code, create websites, and become a hacker. But the grandfather said "You are the eldest grandson" and stuffed the test tube back into his hand. What's even weirder is that the look in the eyes of his childhood sweetheart Zhu Anxia hides a tenderness that doesn't belong to a seven-year-old girl - she seems to be waiting for an answer. Is rebirth a gift or a cycle? When the countdown to fate sounds again, can he avoid the explosion and catch the person he really wants? "Brother Li Feng, I will always stand behind you. As long as you turn your head, you can see it."