Assassin's Creed: Kingdom Odyssey

What would happen that one day you were able to go back in time during The Peloponnesian War. Well that is what happened to our MC Leander Drakos. He started to get weird dreams of the Battle of Thermopylae and then one day he ended up being able to cross time to the Peloponnesian War. How will our MC be able to survive a time of war and fear. Who is that woman holding a spear head as a sword. "Ding"... "Welcome host to the Assassin's Creed PLayer System."...