Namu Amida Butsu... Namu Amida Butsu... Affiliation: Amo-gumi Voice: Soft (as noted by Hayami) Birthday: October 4th (Libra) Alias: Wanaka of the Katana Personality: Intelligent since childhood Blood Type: A Height: 181cm Favorite Foods: Peaches, Mapo Tofu, Ajari-mochi Specialty: Kesa-giri (Diagonal Slash) Battle Cry: Shouts "Cheriyaaa!" when slaying enemies. Hobbies: None. If there is time for that, he swings his sword. One of the "madman seniors" feared by Kotoge, he is a master swordsman who wields a katana with peerless skill. Known in the underworld as "Wanaka of the Katana," he is a terrifying expert capable of slicing opponents into rings, limbless trunks, or clean halves with strikes of incredible power and speed. His combat ability is considered top-tier within the organization, rivaling Kosei Kobayashi. Due to his overwhelming strength, it is said his kendo rank is "unmeasurable," but he undoubtedly far exceeds the 8th dan, the highest rank in real-world kendo. He has striking red eyes and sharp, almond-shaped lids, with red makeup applied to his lower eyelids that gives him an eerie allure (though he did not wear it in his youth or at funerals). According to his junior, Kaname, he is incredibly handsome, and combined with his personality, he is quite popular with women. He has blonde hair styled in a slicked-back pompadour. He usually wears a red high-neck shirt and black trousers, with red reflective piercings in both ears. During combat, he wears black leather gloves. He possesses katanas in both vermilion-lacquered and black-lacquered scabbards, which he carries in a shinai bag or by hand rather than tucked into his belt. While he appears calm and humble at first glance, he is actually extremely competitive. While many other fighters are competitive, he is particularly obsessed with his superiority over other katana users. When facing underworld swordsmen like Shigeo Ijuin or Kenshin Muguruma, if Kotoge expresses concern for his safety, Wanaka reacts with anger—not because of the danger, but because his skill was doubted—to the point of threatening to slice the offender's flesh. He speaks informally to Ichigo.

A martial faction member of the Shinjo-gumi. One of the Shinjo-gumi's strongest assets, with a unique background as a former special police officer. Catchphrase: "What exactly were you born for...?" He was involved in the great war between the Shinjo-gumi and the police and feels a debt of gratitude to Shinjo for saving him. He loves Yokohama and the band B'z.

The protagonist of this work. A mid-ranking yakuza in his late twenties who survives the underworld through sheer effort and grit. It is no exaggeration to say that his behind-the-scenes maneuvers support the Amo-gumi. Though often seen as the voice of reason, he is steadily climbing the ladder toward becoming a "madman senior," doing things like shaving villains with a wood plane. His rise through hard work and guts has made him an idol to his subordinates. He addresses Wanaka as "Wanaka-no-aniki." Speaks politely.

A subordinate of Ichigo in the Shinjo-gumi. He addresses Ichigo as "Ichigo-no-aniki." Speaks politely.