Why Is My Villainous Little Brother Getting More and More Sly?

[Scheming, obsessive fake-puppy younger brother vs. a thick-skinned, dramatic heroine] After transmigrating into a book, Zhou Jin saw her older brother kicking the little villain. That kid would grow up to become a twisted, depraved psychopath who killed without blinking! No choice, she had to save him! “Little brother, I'll raise you while you're young, and you'll take care of me when I'm old. We're the best in the whole world! You can't kill my whole family someday, okay?” Zhou Jin's dream was to lie flat and be a lazy fish before she turned twenty. To make it happen, she diligently saved for retirement from a young age and worked hard to win over the little villain. What bad intentions could she have? Wouldn't it break her heart if something happened to her? A sly old fox coveted her luck, a white lotus hated her shamelessness, her little brother lusted after her body, and the friend who showed up halfway through only wanted her money. Waaah. Many years later, Zhou Jin finally admitted she was smitten. Her little brother was the best, and no one else could compare.