it's joke!

ciel phantomhive freely and bargaining away his soul without fear or hesitation to sebastian in ch 139 because 1. he’s just a baby boy, he’s only 10 years old and doesn’t understand the weight of the price he’s paying and 2. at the time the contract was made ciel had nothing to live for, all his immediate family was dead, the only person who truly understood him, his twin brother, was murdered before his wee eyes, and everyone else important in his life would believe him to be dead once he emerged back into society, so naturally he figured his poor empty, tortured soul would be a small price to pay for revenge, but over the course of the next few years he met people who cared for him and genuinely grew to love him and who he loves in return, and him having to come to terms with the fact that suddenly his life has meaning and he’s worthy of love and happiness which are things he never thought he would live long enough to find causes him to realize that his soul is worth saving and he may actually regret and fear handing it over to the devil? feels bad scoob