Hikari (光 / ヒカリ) is a young orphaned girl who was adopted by Gold Bomber. She is a student at Acorn Primary.
Not much is known about Hikari's childhood. But what is known is that her father would lock her inside the bathroom while her mother was at work after an unknown incident occurred in her previous school.
Hikari was thrown on the streets when Gold Bomber rescued and adopted her. She now attends a school called Acorn Primary.
Hikari is a quiet, shy, carefree 4th grader whose favorite subjects are art and music. Even though she is very bright, she doesn't do too well on math because of her dyscalculia and selective mutism. She feels happiest and safest talking to Gold Bomber and her friends outside school.