Gakuen Idolmaster 2nd Anniversary Live (Hatsuboshi IDOL FESTIVAL)
Illustration: WhyTrend

What happened

On June 6, 2026, Day 1 of 'Gakuen Idolmaster The 2nd Period Hatsuboshi IDOL FESTIVAL' opened at Yokohama Arena, with doors at 3:30 p. m. and the show starting at 5 p.

m. JST (JST is Japan Standard Time). It is a concert marking the second anniversary of Gakuen Idolmaster (nicknamed Gakumas), an idol-raising mobile game where players manage and develop fictional pop idols.

The event runs across two days, June 6 and 7, and is the second leg of the 'The 2nd Period' series after the first shows held May 16-17.

Why it is trending now

The hashtag spiked simply because today is showtime. From the morning, the voice actors (seiyuu) who perform the idols posted a steady stream of arrival and showtime announcements, and the pre-show excitement spread fast on X. The official account confirmed the timing in real time: > Doors are open! The show is scheduled to start at 5 p.m. Posters are on display inside the venue — don't miss them!
> — Gakuen Idolmaster official X

How fans reacted

Cast members shared their nerves and gratitude, with one performer writing that the audience should "soak up the full energy of the entire cast." Fans posted that they were already "in paradise" at the venue, while others said they would cheer from the livestream. Many also mentioned visiting fan-funded promotional ads displayed at train stations.

The venue is also showing off merchandise, including the anniversary single 'Garakuta Road' and limited cans with a cheerleading-themed illustration sold in 13 random varieties.

What to watch next:

Day 2 follows on June 7, and the paid livestream remains on sale. The single 'Garakuta Road' — featuring all 13 idols of Hatsuhoshi Gakuen — has an ASOBI STORE limited-edition pre-order deadline of June 9, so interest in the song and merchandise is likely to keep climbing through the weekend.