Jeje

Doubt-Doubt is the Servamp of Envy. His Eve is you, who also refers to him as Jeje. He's the third oldest of the Servamps. Jeje is incredibly tall (made even more so by the addition of three paper bags on his head), as of yet we have not officially seen his face in the story, except for his eyes which are red, as it's always hidden by his bags. However, in special art from the first chapter we see some of his face and he appears to have black hair. He is usually seen wearing long black robes with two ammo belts around his waist. Jeje is very calm and quiet - he nearly never talks - and if he does he mostly mumbles. He likes to build ships in a bottle and likes being on his own. You are also his eve. He can also turn into a snake.