Grinding My Way to a Happy Ending: If Only My OP Big Bro Didn’t Make Things So (Sister) Complex!

Former office worker Reine is delighted to be reincarnated into an otome game as the beautiful protagonist Renee Wainwright. Or she was, until she realizes the game was notorious for hiding its romance routes behind a grueling grind. Worse still, she’s at the very bottom of the academy’s social ladder and on the verge of expulsion, all while she doesn’t even have the protagonist’s memories as aid. Fortunately, Renee’s tough previous life has sharpened her resolve. Armed with an iron will, she’s determined to climb the ranks, win over one of the love interests, and rewrite her fate. If only her elite and estranged older brother would stop inserting himself into every corner of his “amnesiac” sister’s life! Can Renee beat the odds and claw her way to the top? And what is that her brother seems to be hiding?

(Source: J-Novel Club)