Untouchable Childhood Sweetheart

Two-faced and evil-minded vs. cute and pure. (Note: this is poisonous, and is cruel to the outside and stupid to the inside)
A story about how a black-hearted little attack cuts through a bamboo horse, and how a little attack eats a little attack, and how a little attack eats a little attack, and how a love story between a bookworm's attack and an underachiever's attack is a love story.