Bonbu

Bonbu is an ex-Defense Force soldier who is an acquaintance of Makina. He helped Makina in overthrowing Tamaki and destroying Deadman Wonderland. "Bonbu" is a nickname that sounds like "bomb", directly hinting to his speciality, bombing. His real name is unknown.

History
He joined the Special Forces some time in the past. There, he met and befriended Makina, Ekō Kaidō and Kashima Toraichi.

During his time there, his face was bandaged, so it is likely that his face was burned during that time.