After Rebirth, I Will Not Be White Eyed Wolf's Sister

My younger brother who just entered college secretly dated a girlfriend. After I found out that the woman was a habitual mistress who interfered in other people's marriages, I gave her money to leave my brother. But she threw herself into her brother's arms and cried, saying that I wanted to kill their love. Later, I was killed by my brother, and their love was no longer hindered. After resurrecting my life, I will fulfill my brother's desire for love and add some spice to their love.