Kentaro "Nanashi" Hiroshi (健太名無し郎博, Hiroshi Nanashi Kentaro, meaning sharp and generous), known to others as Kentaro Shiba (健太郎芝, Shiba Kentarō), is the son of Kenji and Ino Hiroshi; as well as the partner of former Imawashī operative Akiye. He is the only surviving son of Kenji, older brother of Kay Hiroshi, and the godson of Shigeru Yūdai. He also has an alternate world counterpart in Nanashi Hiroshi, with whom he is allied. Kentaro is a natural Excavado as well as one of the Seijin-trained, having studied extensively under Garian Shinjo. Due to his connection with Averian and the latter's connection to The Outsider, Kentaro is classified as a Pseudo-Tenjin, and one of the few beings capable of landing a killing blow to the Tenjin or those with their power.