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

One day, Reine found herself reincarnated as Rene, the heroine of a grinding-based otome game that she had dropped in the past. Just when she thought her sparkling heroine life was about to begin, she discovered that Rene had been bullied at school and even jumped off a staircase. Um, that sparkling heroine life... isn't it over before it even begins? What awaited Rene was a magic academy with a caste system based on academic performance and a messed-up event system, even referred to as a "shitty game." Moreover, the current Rene was an F-rank with no human rights. She was already in trouble. That being said, this was, after all, a grinding game. As long as she works hard, her status would definitely rise up, and by talking to the capture targets, she could increase their favorability. Taking advantage of her strong mentality, she wants to enjoy her school life to the fullest, unlike her previous life which was filled with studies and work! She also wants to fall in love with a handsome man! But with an older brother whose thoughts she could never understand, the capture targets with explosive personalities, and unexpectedly venturing into an unpredictable route, Rene's school life becomes increasingly chaotic.