As of today, I'm dating a younger guy

“Isn’t there a nice younger guy anywhere?” Joo Seo-ah and Nam Do-hyun have been friends since middle school. But after Korea’s “age internationalization” law, Dohyeon ends up being younger than Seo-ah. Because of her ex-boyfriend, Seo-ah finds herself wanting a younger guy with a “nice, firm chest,” and she tells Do-hyun—whose birthday is later than hers—to try calling her “noona.” “Hey, Nam Do-hyun—say ‘noona.’” “…N-Noona?” Do-hyun’s embarrassed reaction looks cute. But if he looks cute, that’s a problem… what do I do?!