Sin is a mean person you know what I mean he hates the world and everything in it why you ask. well his mom and dad were killed in a fire so you should konw how that made him feal if you get it. so after that he went on with his life 2 years later he found Ky and Ky had the same problem his mom and dad died. so you know how that would go they talked to each other and they gat along very well. so frome there on they were Best Buds thats all there is to it Bro.