Kenzō (賢蔵) - Kenzō combines "ken" (賢), meaning wise or intelligent, reflecting cunning, and "zō" (蔵), meaning storehouse, suggesting a deep connection to tradition and the preservation of knowledge.

Alternatively, consider these options, each with a slightly different nuance:

• Shōgo (正吾): Shōgo uses "shō" (正), meaning correct or upright, hinting at a cunning strategy masked by a facade of respectability, and "go" (吾), meaning I or self, emphasizing individuality within tradition.

• Ryōta (亮太): Ryōta combines "ryō" (亮), meaning bright or brilliant, suggesting sharp intellect and cunning, and "ta" (太), meaning large or great, implying a significant presence within the traditional Yakuza structure.

• Hisashi (久志): Hisashi uses "hisa" (久), meaning long or lasting, reflecting the enduring nature of traditions, and "shi" (志), meaning will or aspiration, suggesting a cunning ambition rooted in tradition.

• Masamune (正宗): Masamune combines "masa" (正), meaning correct or upright, again suggesting a cunning strategy masked by respectability, and "mune" (宗), meaning school or sect, highlighting a deep connection to a specific traditional Yakuza lineage or ideology.

These names aim to capture the essence of "super cunning, rooted in traditions" by using kanji with meanings that subtly convey both intelligence and adherence to established customs. The choice depends on the specific character's personality and role within the narrative.