Stranger is a shadow of who used to be a boy named Hero. He was trapped in Blackspace for as long as he could remember Headspace to exist, and acts as a guidance figure to another character called Hikki, otherly named as Mari.

Stranger Hero comes from the Omari AU, and he knows the truth about Sunny's "dissapearance", only wishing to get the truth through Hikki so she accepts it.

Despite that, Stranger Hero is a kind, desperate soul, and knows to be helpful.