Subaru Sengoku, hero name Mr. Black, is one of three new additions to Hero TV in N.C. 1980. While he is only 17 years old, he's no rookie and has grand ideals about the mindset and motivation one needs to succeed as a hero. He can be confrontational at times and dislikes the commercialized aspects of Hero TV, wishing to steal the spotlight under his own terms. He previously worked in his hometown under the hero name Hello Goodbye, and got high marks on Hero TV's recruitment exam. His NEXT power is to create barriers, which are resilient to moderate damage and resemble floating holograms.