Yankee-kun and the Laid-back Old Man

When she was little, Hotaru was being harassed by delinquents and was saved by a cool-looking older brother. After several years of searching to see him again, Hotaru, who had grown into a respectable delinquent, once helped a timid-looking salaryman who was being harassed by delinquents. When she looked closely at the salaryman's face, which was hunched over with messy black hair, she saw a mole in the same spot as her older brother! It turns out that the older brother she admired, Kyoshiro, had become a fluffy, laid-back uncle who loves fancy goods!