Reborn, My Childhood Sweetheart Is Absolutely Adorable

One female lead + not invincible + light System + everyday life + mutual devotion. “Gu Huaian is reborn in his student days. Looking at his childhood sweetheart, Li Yun, sitting at the desk in front of him with her hair tied in a high ponytail and secretly slipping milk candies into his pencil case, he finally gets the chance to make up for all the tenderness he missed in his previous life. His bound romance System's golden finger only reminds him, ‘Don't make her cry again.’ So he puts aside the sharp edges he had in his previous life, helps her solve math problems, races her for sweet-and-sour pork ribs in the cafeteria, and fends off annoying confessions. Amid the everyday warmth of life, he turns his ‘childhood sweetheart’ into his one and only, most adorable happily-ever-after.”