Weak, bullied, and pessimistic about life, that's Setsuna Kashiwagi. On the verge of jumping off a bridge, a mysterious man appears behind him and offers the contract "10 million yen in exchange for your lif...

my brother came to our house, I'm so happy! But even he doesn't even want to be in the same room with me nor sit next to me on the sofa... Though I'm doing my best! Am I that strange? You know, brother, I'm ...