From the pixiv description: She had a crush on a classmate, but he already had a girlfriend. One day, she found her walking a puppy, and,feeling angry towards her, she took advantage of a moment of distraction and kidnapped it. She started to abuse it in every kind of way, kicking it, punching it and starving it. One day, after giving him not food nor water for three days, she felt a little merciful and decided to give him something to quench his thirst. I hope he likes lemonade!