Superalloy Darkshine (超合金クロビカリ, Chōgōkin Kurobikari; Viz: Superalloy Blackluster) is the S-Class Rank 11 professional hero of the Hero Association.

Superalloy Darkshine is a very tall and extremely muscular man. His skin has a dark complexion and gives off a lustrous shine. His head is bald, and he has full lips, dark eyes, and thick eyebrows. His only attire is a black speedo. When Darkshine flexes, his muscles seem to grow to unnatural levels. In the heat of battle, Darkshine’s overwhelming presence causes him to look much larger than he usually is, as he appeared to dwarf Puri-Puri Prisoner despite being only a few inches taller.

As a child, Darkshine was thin and frail. He had medium-length black hair and light skin.

In contrast to his imposing outer appearance, Superalloy Darkshine is a level-headed individual who dislikes conflict. During S-Class hero meetings, where many egotistical individuals meet, Darkshine often tries to assume the role of mediator. Superalloy Darkshine is a rather vain person, as when he was sitting at a meeting with other S-Class heroes, he wondered whether everyone’s eyes were glued to his body and whether or not he was the shiniest person in the room.