Dimension New Life

A child who had just murdered his parents is randomly summoned to this strange world and all of a sudden he has a furry tail attached to him right above his rear. He is then told that people will be looking for him to use him to unlock a gateway and it will guarantee his death. Survival and living a normal life are possible, however, it won't be easy. Can he adjust to his new life and become strong enough to defend himself or will he end up 6 feet under?