Punishment Glutton. (Light Novel)

Jack Eventreur is a semi-average teenage boy, average looks, average social skills, average talents. Other then Jacks intelligence,obsession with manga and comic lifestyles, and lack of any friends other then two co-workers. Jack lives a average life. One day he comes in contact with a creature called Eidolon, a Kanjō ītā, after a encounter on a seemingly empty road Jack is left with the same ability's as Eidolon. Feeling bad for what she had done Eidolon asks Jack to form a contract with her, the contract is simple, feed her; and shell help him obtain more friends.
Will Jack use his powers or ignore them? is Eidolon genuinely good nature d? or is it all a part of somebody else s twisted game?