“I Have a 10-Year-Old Son”: National Idol Group Alum’s Secret Marriage & Divorce Bombshell — 5ch Asks, “Wait, What Does ‘OG’ Even Stand For?”

Background and key points of this discussion

The headline stems from a “scoop teaser” that photo tabloid websites post on X ahead of the print magazine’s release — a technique that withholds the subject’s real name to build interest before the full article goes up. Entertainment magazines have leaned on this tactic heavily in recent years, and the post itself contains almost no information that could identify who’s actually involved. The thread’s central debate over “OG” refers to a term used in school clubs meaning “Old Girl,” i.e. a graduate — in idol lingo it’s shorthand for “former member.” Even so, with only three clues to go on — “national,” “OG,” and “10-year-old son” — narrowing it down to a single person proved difficult, and candidates like Morning Musume, AKB48, and Onyanko Club never rose above speculation. There were even cases of posters self-correcting mid-thread, as with the Yokoyama Rurika theory, which was walked back with “she’s not from a national idol group.” Since the magazine’s actual article remained unconfirmed at the time of writing, the real identity and facts of the matter would need to be verified separately through the original source.