Reborn as the Only Villain in a Chaotic Family

[No romance + not a strong female lead + family bonds + everyone's favorite] My whole family consists of the male and female leads of melodramatic novels. Dad chases Mom until she takes him back, Mom is the heroine of an angsty romance, and each of my four older brothers is crazier than the last. I'm the only normal person in the whole family. To stop this family from falling apart without warning one day, I decided to play the villain myself and fight fire with fire to keep us together. After all my hard work, why did my whole family suddenly wake up to the truth?!! Mom shouted that she was going to be an independent woman, then packed her bags in the middle of the night and got ready to divorce Dad. Dad came to his senses and began chasing her in earnest, acting like he was going to die every day. As for my four older brothers, they became normal people, but their thoughts somehow got even more terrifying. My instincts told me that the best plan was to run for it. Dad, Mom, my brothers. Don't miss me too much. I'm setting sail tonight. Destination: the stars and the sea!