Shinjiro Hohoemi, alias Mr. Smiley, possesses a striking appearance marked by long blond hair tied in a ponytail with light green tips, piercing blue eyes, and unusually muscular forearms contrasting his lean frame. His eclectic wardrobe features a pink v-neck shirt edged with white frills, burgundy pants, a concealing black mask, and a red cowboy hat topped with two oversized paintbrushes. Attachable springs bolted to his shoes amplify his agility, while a holographic projector replicates his visage to amplify the reach of his Quirk. Once an aspiring artist, Shinjiro resorted to vandalism following relentless rejections from institutions, channeling his frustration into public graffiti to demand acknowledgment. His Quirk, Smile, compels uncontrollable two-hour laughter in anyone who glimpses his teeth—whether directly, through mirrors, or real-time footage—rendering targets helpless. The ability also disrupts machinery, sparking short circuits. Though a fugitive, he deliberately avoids physical harm, prioritizing evasion over violence to protect his artistic mission. A raid on Endeavor’s vandalized estate by the Endeavor Agency ignited a clash with heroes like Izuku Midoriya, Katsuki Bakugo, and Shoto Todoroki. Shinjiro outmaneuvered initial pursuits by deploying his projector and environmental tricks, exploiting his Quirk’s mechanics. Izuku’s investigation into Shinjiro’s past uncovered shared struggles with validation, prompting a raw exchange where Shinjiro confronted his self-sabotaging choices and contemplated change. His resolve shifted when criminals stormed a commercial building, jeopardizing civilians and defacing his murals. Shinjiro intervened, neutralizing the attackers with his Quirk—a pivotal act of protection despite his rogue status. Combined with Izuku’s empathy, this spurred his surrender and pledge to reform through lawful art. A televised interview later accidentally triggered his Quirk, paralyzing viewers with laughter yet funneling global traffic to an online gallery Izuku established to showcase his work. The name "Hohoemi" (meaning "smile") mirrors his Quirk and persona, while his graffiti-driven rebellion and anonymous fame parallel Banksy’s subversive artistry. Shinjiro’s journey culminates in a tentative redemption, balancing accountability for past crimes with a reinvigorated dedication to legitimate creative expression, symbolizing a bridge between defiance and introspection.