Kasen Yurusmaji- A Innocent Smile And A Dirty U... — Recommended

I am assuming the full intended phrase is likely related to a character archetype or a specific narrative trope, possibly: "Kasen Yurusmaji - An Innocent Smile and a Dirty Uniform" or "An Innocent Smile and a Dirty Unspoken Truth."

Kasen's true danger lies in his mastery of sorcery and information. His knowledge is estimated to be double that of the Kamunabi's Level 2 library, and he possesses the rare ability to mask spirit energy from even the most learned sorcerers. This allows him to operate in the shadows of his own organization, keeping the "fine details" of his ultimate goals—total control of the Enchanted Blades—hidden from his fellow leaders. Kasen Yurusmaji- A Innocent Smile and a Dirty U...