Play the Part of the Heiress to Perfection

Synopsis: [Reborn heiress vs. loyal puppy, love-struck, foxlike charmer, academic-family young master] [Sweet, satisfying romance]

In her previous life, Song Zhizhi was a fool who had been left intellectually disabled by a fever at age nine. In the end, her fiancé's mistress bullied her, then burned her to death at their engagement banquet. Given another chance at life, she returns to her senior year of high school. This time, she's determined to play the part of a proud heiress, avenge her former self, and build a good life through her own efforts. [Sisters, it's time to fight!]

But can someone explain why there's suddenly a love-struck, foxlike charmer who never existed in her previous life?

Some smooth talk:

[If you praise Duoduo like that, its tail will surely wag like a propeller and send it flying into the sky. But maybe you could try praising me sometime. I won't fly off into the sky.]

[Come on, what are we to each other? Sure, I'm cheap, only ten thousand a month, but you're my sugar mama too. Let me have a look. That's not asking too much.]