YOU SAID:

there once was a boy named harry destined to be a star. his parents were killed by voldemort who gave him the lightning scar

INTO JAPANESE

かつてスターになる運命にあったハリーという男の子がいました。彼の両親は彼に雷傷を与えたヴォルデモートによって殺されました

BACK INTO ENGLISH

Once there was a boy named Harry who was destined to become a star. His parents were killed by Voldemort who gave him lightning

INTO JAPANESE

かつて、スターになる運命にあったハリーという男の子がいました。彼の両親は彼に稲妻を与えたヴォルデモートによって殺されました

BACK INTO ENGLISH

Once there was a boy named Harry who was destined to become a star. His parents were killed by Voldemort who gave him lightning