Matabi Nekonshin, known alternatively as Matabinekonoshi or Matabi Nekono Shi, acts as the sworn enforcer of antagonist Unkokusai, executing his master’s will with ruthless precision. A warrior of intimidating stature and ferocity, he operates within Unkokusai’s territory flanked by two enigmatic female companions. His loyalty manifests in brutal acts of violence, most notably slaughtering the parents of Fubukimaru—a swordsman allied with the protagonists—to cement his role as a relentless adversary. Matabi escalates hostilities by ambushing the protagonists during their quest to challenge Unkokusai, seizing Misae Nohara’s vital handbag and its crucial contents to undermine their efforts. A tactician in combat, he employs a versatile arsenal of weapons, including a concealed secondary sword for dire scenarios, reflecting his lethal adaptability. His reign culminates in a vengeful duel with Fubukimaru, who strikes him down as retribution for his mother’s murder, ending Matabi’s threat. Beyond the primary narrative, the character appears in a Spanish-localized video game adaptation under the alias "Karakulo," an alteration exclusive to that iteration.