YOU SAID:
Ciel Phantomhive is a teenage boy who's family was taken from him, so he enlisted in the help of a demon whom he named Sebastian in order to get revenge on the people who burned down his manor and killed his family
INTO JAPANESE
シエル・ファントムハイブは、家族が彼から連れて行かれた10代の少年なので、彼は彼のマナーを焼き払い、彼の家族を殺した人々に復讐するためにセバスチャンと名付けた悪魔の助けを借りて参加しました
BACK INTO ENGLISH
Ciel Phantom Hive joined with the help of the devil named Sebastian to burn down his manners and take revenge on those who killed his family, because his family is a teenage boy taken from him
INTO JAPANESE
シエルファントムハイブは、彼の家族は彼から取られた10代の少年であるので、彼のマナーを焼き払い、彼の家族を殺した人々に復讐するためにセバスチャンという名前の悪魔の助けを借りて参加しました
BACK INTO ENGLISH
Ciel Phantom Hive joined with the help of a demon named Sebastian to burn down his manners and avenge the people who killed his family, because his family is a teenage boy taken from him
INTO JAPANESE
シエルファントムハイブは、彼の家族は彼から取られた10代の少年であるので、彼のマナーを焼き払い、彼の家族を殺した人々を復讐するためにセバスチャンという名前の悪魔の助けを借りて参加しました
BACK INTO ENGLISH
Ciel Phantom Hive joined with the help of a demon named Sebastian to burn down his manners and avenge the people who killed his family, because his family is a teenage boy taken from him
That didn't even make that much sense in English.