Stranger Things : I m Steve Harrington

Waking up as Steve Harrington three years before Will Byers vanishes, a man from our world decides to change the tragic future. He isn't just armed with knowledge of the show, but three impossible abilities: the Dimensional Backpack, which grants him one random survival item (like a medkit or grappling gun) every period of time; Fight Master, allowing him to learn any combat style instantly; and Pain Heal, a double-edged power that lets him miraculously cure others by absorbing their agony into his own body — Description from novelcodex.org