Nogizaka46 Sumo Grudge Match (Nogizaka Under Construction)
Illustration: WhyTrend

What happened

On June 7, 2026, at 12:15 a. m. local time, Nogizaka46 — an idol group (a pop act whose members are marketed individually to fans) — aired the latest edition of its flagship variety show (a Japanese TV format mixing talk, games, and comedy), 'Nogizaka Under Construction,' on the TV Tokyo network.

The night's segment was the 'Sumo Grudge Match (Spring 2026),' a recurring fan-favorite where members settle petty grievances with each other through sumo bouts. This time, Mizuki Setoguchi — a member of the group's 11-person 6th generation that joined in 2025 — made her debut in the sumo ring.

Why it is trending now

The segment alone draws an audience every year, but two extra hooks pushed the hashtag higher. Fans widely expected the show to reveal the senbatsu (the front-line member lineup) for the group's 42nd single, which is the kind of news that reshapes who fronts the group. There was also timing: the broadcast ran past midnight into June 8, which happens to be member Ayame Tsutsui's birthday, fueling hopes that she and member Yuna Shibata would make the lineup.

How fans reacted

English-language idol communities track these episodes closely. During the broadcast, fans posted in real time about the grievance reveals — including a running gag about the color of a member's curtains between Sakura Endo and Nao Yumiki, and a rookie's confession that drew teasing.

What to watch next:

The key question is which members make the 42nd single lineup and who is positioned at center. A spin-off, 'Nogizaka Under Construction Extended,' streams on Lemino (a Japanese streaming service) right after the broadcast, delivering unaired footage and extended bouts — so fans get a second viewing layer the same night.