Watch Immortal Demon Slayer (2017) HD Full Movie Free on SolarMovie. Watch Immortal Demon Slayer (2017) online free. A giant rebelled against the heavens. It was declared a devil and defeated. The immortal heart evolv...A giant rebelled against the heavens. It was declared a devil and defeated. The immortal heart evolved into Sun Wukong. The heavens found him, and ravaged his home. He enters the heavenly kingdom, disguised as a human, seeking retribution.