phenomen a book

In the vast multiverse, Earth is just a low-level planet, devoid of any immortals or gods. Samuel Haze, a music-loving high school student, has his body taken over by a weakened immortal who fled to Earth. Years pass, and Sam has witnessed numerous atrocities committed by the Immortal in his body. Finally, one day, Samuel regained control of his body for a short time. During this period of time, he kills himself.