His dad disowned him and his best friend left him. John's left alone, until one night that is. He's been stabbed and is dying in an alley when a troll named Karkat takes him back to his house, saving John's life. While John stays with him, he falls in love with the troll. But when John's past catches up to him, he's terrified that everyone will leave him. Johnkat, Johndave.