I Said I'd Take It Easy, but the System Forced Me to Become a Pillar of the Nation

(Period Piece + Geniuses and Top Students + System + No Romance + Feel-Good Power Fantasy + Humor) After Lin Xi dies and is reincarnated, he becomes the only "foolish" grandson in the old Lin family in the 1980s. With doting grandparents above him and four older sisters taking turns spoiling him, he thinks he can lie flat in comfort, mooch off everyone, and coast through life. Who could have guessed that a [King of the Grind] System would drop from the sky, forcibly develop his brain, and give him access to a vast database of knowledge! System: "Bind yourself to me and get grinding. You will have the whole world at your fingertips!" Lin Xi: "No! I refuse! I just want to slack off!" System: "Refusal denied. Today's study task is incomplete. Electric shock punishment commencing..." Forced into action, Lin Xi can only set off tearfully down a "road of no return." From the well-known "foolish kid" of the surrounding villages to the full-mark genius who stuns his entire school; from a peddler hawking digital watches to a business tycoon leading the way in technology; just when he finally thinks he can take a breather and enjoy life, he discovers that the achievements he has ground out have already attracted the attention of the highest authorities... Lin Xi: "I really just want to slack off!" Everyone: "No! You're a genius! A national treasure! You're our light!"