Ireisu’s Biggest Tour Yet Reaches Its Final Day
On September 22, 2026, 2.5D idol group Ireisu held the finale of Ireisu Summer Tour 2026 Irregular Vacation -Colorful Street- at LaLa arena TOKYO-BAY in Chiba. The tour was the group’s largest to date, covering 13 cities, 14 venues, and 24 performances, and the final show marked its last stop.
Formed on October 9, 2020, Ireisu is a six-member 2.5D idol group under VOISING. The group builds on internet-native activities such as cover videos, original songs, variety projects, and livestreams while expanding into real-life concerts and corporate collaborations.
After their major debut in 2022, they steadily scaled up with nationwide Zepp tours and a Ryogoku Kokugikan performance. In February 2024, they achieved a one-man live at Nippon Budokan, said at the time to be the fastest for a utaite group. On November 30 and December 1 of that same year, they held their first dome concerts at Belluna Dome for two days. In summer 2025 they completed an arena tour that drew about 90,000 people, and in summer 2026 they successfully mounted a large-scale tour across 13 cities and 14 venues.
The 2026 tour began in July at Mori no Hall 21 (Matsudo City Cultural Hall). Under the slogan ‘Zenkoku Ireisu-iro Daisakusen!’—literally, a mission to paint the whole country in Ireisu colors—the group set out to reach fans nationwide. Typhoon No. 25 forced the cancellation of the performance on the day before the finale, so Team Ireisu carried the frustration of the fans and the team into the final show.
When the venue darkened past the scheduled time, an opening video introduced each member on the back screen. As the tour title appeared, the six members emerged from the stage wings to loud cheers. The first song, ‘PAINT YOU’, began with a solid backing band and a comfortable groove. Four summer tunes followed in succession, and with imagery of fireworks blooming in the night sky, the audience shared in a festival mood fitting for summer songs.
In the first MC, Yuusuke urged the members on, saying they should give a self-introduction worthy of the finale. The introductions began in dice-number order. Riura fired up the crowd with, ‘The most important thing today is that you enjoy yourselves 300% more than we do! Can you go?’ By the time Yuusuke, who went last, took his turn, the number had inflated to ’50 million percent’. Yuusuke called out, ‘Can you go 50 million percent?’ and the audience answered with full-force cheers, filling the venue with finale-level heat.
Yuusuke then said, ‘There is a shugoi song that Ireisu has been working hard to make a big part of this summer…’ and launched into ‘守護いスキっ！’. Through the tour, the song had grown into a killer tune with help from the fans, and its call-and-response rang out in sync. Without losing momentum, the group performed ‘推せ推せ！いれいす応援団！’ with summer festival imagery on screen. During ‘無敵スマイル宣言！’, -hotoke- led the tour’s regular ‘Muteki Janken Corner’, and the members’ back-and-forth had the crowd joining in.
After a second MC, Riura teased, ‘Don’t fall over because it’s too cool, okay?’ From the eighth song, ‘COLORS’, the mood shifted to cool. Sharp dancing and light rap captivated the audience, and when the intro to ‘Paparazzi’ played, the cheers may have been the loudest of the day. The members scattered around the stage to sing, showing off Ireisu’s stylish side.
With the cool afterglow still in the air, the third MC began the final-day special project ‘Ireisu Colorful Street Memories’. The adult team—Naiko, If, and Yuusuke—remained on stage and looked back at memories from each tour stop through a roulette-style presentation with photos. They talked about local specialties they enjoyed, and a surreal image of Naiko doing a dogeza at the Yamaguchi performance was suddenly shown, drawing laughter from the audience.
Next came the solo section. Riura covered ‘ラヴィ’, -hotoke- covered ‘ハッピーシンセサイザ’, and Uito covered ‘D/N/A’. They also performed their solo songs: Naiko with ‘やんなっちゃう!!!’, If with ‘Take a risk’, and Yuusuke with ‘NAKEDANSWER’, highlighting each of the six members’ distinct personalities.
After the solo section, the kids team—Riura, -hotoke-, and Uito—started the special project ‘Colorful Situation Challenge’. For each assigned heart-throbbing prompt, they improvised a nukuru line to the camera. The sweet lines, irresistible to fans, drew passionate gazes and high-pitched cheers.
When the adult team returned to the stage, the show moved into a lavish ‘Colorful Medley’ packed with original songs. Then came ‘Royal Trap’, the double-center song by Uito and If, who ranked first in the eighth Ireisu General Election. A mirror ball spun as part of the staging.
The group also performed ‘ヒバナ’ at the tour finale. The cover song’s utaite video had been published on the official YouTube channel on August 23, 2026. They sang it with overwhelming intensity.
In the MC after the performance, Naiko reflected, ‘We performed the origin—our utaite cover—as a finale-only treat.’ He added, ‘I feel the sound pressure was the most intense of any Hibana we’ve ever sung,’ quietly expressing confidence in the finale’s swirling heat.
After taking a group photo for social media and a TikTok video, -hotoke- said, ‘I am truly happy that we can pile up memories like this.’ He shared his feelings: ‘We are active in the hope that Ireisu can become a family-like place for everyone.’ The group then delivered the heartwarming ‘ただいま’ and the beautiful piano-and-strings ballad ‘夢の中で’.
At the end of the main set, If spoke plainly: ‘We are aiming for Tokyo Dome, but honestly, as things are now, it is difficult.’ He then expressed strong resolve, saying, ‘We have to change something.’ They performed the fifth-anniversary song ‘幕開けの歌’. Members put their arms around each other’s shoulders and sang back-to-back in emotional scenes. At the end, six-colored silver tape shot out, bringing the main set to a finale.
During the encore, the members went down into the arena aisle to enjoy close communication with fans and carefully waved to the stands. After two songs, they returned to the stage for Ireisu’s trademark super-important announcement.
They revealed the first-ever four-group joint real event under VOISING, ‘VOISING HOLIDAY’; the ‘Ireisu Summer Tour 2027’ from July 2027, visiting Osaka-jo Hall, Marine Messe Fukuoka, and Yoyogi Daiichi Taiikukan; and that the sixth-anniversary stream on October 9, 2026 would announce their future activity policy.
Naiko stressed that it was ‘not an unsettling announcement’ and that it was a positive policy shift to keep aiming for Tokyo Dome. He gently told the fans, ‘Please never forget our best summer memory with you this year,’ and closed the encore with ‘悠久休暇’.
At the very end, all members, including the backing band, lined up across the stage, held hands, and greeted the audience. They exchanged a warm promise with fans—’Let’s meet again’—and the tour that Team Ireisu ran through together reached a grand finale.
Ireisu Summer Tour 2026 Irregular Vacation -Colorful Street- Setlist (Part 2)
- PAINT YOU
- いれサマ！！！！！！！
- よっ！夏大将！LOVE紫外線
- 夏☆らびゅ☆大作戦
- 守護いスキっ！
- 推せ推せ！いれいす応援団！
- 無敵スマイル宣言！
- COLORS
- EGO1ST
- Empty Heart
- Paparazzi
- ラヴィ (Riura / cover)
- ハッピーシンセサイザ (-hotoke- / cover)
- D/N/A (Uito / cover)
- やんなっちゃう!!! (Naiko)
- Take a risk (If)
- NAKEDANSWER (Yuusuke)
- Colorful Medley
- Royal Trap
- ヒバナ (cover)
- ただいま
- 夢の中で
- 幕開けの歌
Encore
- 24. Seventh!
- 25. のんすとっぷ！LOVEサマー
- 26. 悠久休暇
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