Really giving off a yakuza vibe here.
Pixiv also has it (user-)tagged as Walking Intelli(gentsia)-Yakuza, with Intelli(gentsia)-Yakuza being used to refer to characters who look well-educated and intellectual but are nonetheless yakuza(-like) inside. Kancolle!Kirishima is the poster girl for this trope, though the term has also been used for Kicchou Yachie and Mine Yoshitaka.
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