The Celestial Thief

Noctus as been roaming the earth and the universe for thousands of years. After having meditated two centuries in an ancient Kree city, doing something (?), he awakens just in time to participate in the event leading to the Inhuman outbreak.(Agents of Shield season 2, predating Age of Ultron) The MC do NOT have meta-knowledge of the future but he knows more than Odin or The Ancient. Spoiler Warning ! The Mc is a shape-shifter that change it's genre regarding it's humor and actions. He is calm, calculative and a bit of a nerd. He love RnD and History but prefers observing without intervening. She's a battle junkie, always ready for a fight (especially in bed). She's joyfull but a bit narcissistic and kleptomaniac (the author deny any similarity with another fiction character, she's not that crazy). And never say that they are two different personalities if you can't stand a death glare of someone who gave Hela cold sweat.