The Immortal Man

In the beginning of mankind after Lucifer's fall from Heaven, the only way a mortal could gain a supernatural life and abilities was to be granted them through a contract with either God's Angels or Satan and his demons. These contracts were made with people of promise who could either do good or destroy the world, there was a race for candidates. One of these candidates was Alexander, a Roman commander under Emperor Gaius; Alexander was given the option to choose between a contract with Michael(Angel) or Azazel(Demon). In the end, he outsmarted them and created a contract with both sides making him the very first truly Immortal being in the world. After centuries of following orders from both sides never able to be free, he's released from his contract spending the rest of eternity with Azazel and Michael in hiding to prevent his immortality from being used inappropriately. In 2018 he comes out of hiding, following his heart, making mistakes, meeting new friends and seeing old ones.