2.5D Idol Group Ireisu Completes National Arena Tour with 90,000 Attendees! "We're Going to Tokyo Dome. Seriously, Please Support Us." [Final Day Performance Report]

Ireisu Summer Tour 2025 'Everybody -Matsuri- FESTIVAL !!'

2.5D Idol Group Ireisu Concludes National Arena Tour with 90,000 Attendees! “We’re Heading to Tokyo Dome, Seriously, Yoroshiku (Please Support Us)!” [Final Day Performance Report]

The 2.5D idol group Ireisu wrapped up their summer arena tour, “Ireisu Summer Tour 2025 ‘Everybody -Matsuri- FESTIVAL !!'”, with two exhilarating days at K Arena on September 27th and 28th, 2025. This article dives into the highlights of the tour’s final day, a performance that also brought a delightful surprise: the announcement of an online live concert scheduled for October 9th, which marks the group’s 5th anniversary.

Ireisu’s Journey to the Arenas

Having achieved their long-cherished dream of performing at Nippon Budoukan in just three years since their formation, Ireisu continued their meteoric rise last year with a successful two-day concert at Belluna Dome. Their latest ambitious endeavor was the “Ireisu Summer Tour 2025 ‘Everybody -Matsuri- FESTIVAL !!'”, a nationwide tour with every venue being an arena. Spanning 10 performances across 5 cities, this tour attracted an astounding 90,000 attendees, marking their largest mobilization to date. It was a powerful stride forward for Ireisu as they pursue their new dream of a solo concert at Tokyo Dome.

A Festival of Summer Memories: Tour Concept

The tour’s overarching theme was a lively “matsuri” (festival), proudly proclaiming “Yaruki! Genki! Bakasawagi!” (Motivation! Energy! Wild Fun!). The narrative unfolded around a playful prank by the Festival Gods, who transformed the members into students. To revert to their original forms, the group embarked on a quest to create 90,000 memories with their fans during summer vacation. The setlist primarily featured songs from their 7th full album, “Houkago Archive,” brilliantly showcasing the vibrant essence of “the current Ireisu.”

The Grand Opening: K Arena Ignites

As the final performance began, the K Arena stage filled with thick smoke, setting an enigmatic mood. Festival lanterns glowed, casting colorful light, and the distant sound of festival music (matsuribayashi) stirred the hearts of Ireisu’s devoted fans, known as Irerisu, who eagerly rose to their feet. When the lights dramatically extinguished and the opening movie rolled, the grand show officially commenced.

Igniting the Stage: Early Performances

With each member’s appearance, a magnificent cheer erupted from the audience, filling the air with sheer “frenzy.” The six members channeled this overwhelming excitement into pure power, kicking off the live with their lead track, “Ire Sama!!!!!!!!!!!”.

Despite being just the first song, the tension was already at its peak. Not content with merely enchanting the crowd with their unique voices, Ireisu captivated everyone with synchronized dances and rapidly changing expressions, elements that truly shine in a live performance. They continued to unleash their energy with “Natsu☆Love U☆Daisakusen,” an energetic track that saw fans vigorously waving their towels, followed by “Nonstop! LOVE Summer.” They left no room for rest, creating an incredible sense of unity right from the start, marking a magnificent and powerful opening.

Catchy Rhythms and Heartfelt Expressions

Even after a lively MC segment, the feverish atmosphere showed no signs of abating. Ireisu then performed “Zettaiteki Shinja!”, a song for which they challenged themselves with their first-ever 2.5D music video, engaging in energetic and unreserved otagei (wota dance moves). The lights in the audience swayed in sync with the members’ movements, creating a unified spectacle. The show continued with a string of bright, engaging numbers: “Gakkyuu Houkai☆Destroyer,” featuring humorous interactions between the Otona-gumi (adult group) and Kodomo-gumi (children group); “Aishiteru ja Tarinai mon!”, with its charming, cat-like, mesmerizing choreography; and “Senobi,” which exploded with sweet, poppy idol appeal.

Shou then announced, “Suddenly, do you all have a place where you belong? I created this song hoping it could be that place for you,” introducing the heartfelt ballad “Tadaima.” The members delivered the lyrics with warm tones, as if speaking directly to each person in the audience. Their gentle gazes towards the crowd conveyed the sentiment, “I hope I’m the place you return to.” The first half of the concert concluded with a wave of happiness, featuring a heartwarming “Lalala” singalong.

Intermission: Behind-the-Scenes Fun

Next up was one of the highlights of an Ireisu concert: the intermission video segment. For this performance, a special video titled “Irregular Mystery: Escape from School with Talk” was screened. The first half’s talk theme was “things you like about other members that are usually hard to say.” If exposed Yuusuke for passionately articulating his deep feelings at a New Year’s drinking party, to which Yuusuke retaliated by confessing how patiently If had looked after him. -hotoke- then playfully cornered If, asking, “You forget a lot of things… is even that part of you lovable?” This exchange between the two sparked delighted cheers from the Irerisu.

Solo Spotlights and Unit Power

After the comical intermission, the concert transitioned into its mid-section, showcasing unit and solo performances. Shou passionately poured out his emotions in “Lens,” while Riura delivered “SELFISH SCREAM!!” with an unwavering gaze. -hotoke- unleashed peak cuteness with “Imuimu★Angel Beam,” and the Kodomo-gumi (Riura, -hotoke-, Shou) impressed with their solid, mysterious sound in “Deeper codE.”

A Dream for Tokyo Dome: Naiko’s Passionate Message

Riura’s vivid flow, Shou’s brain-piercing bass, and -hotoke-‘s sweet, enveloping vocals combined to create a fresh, captivating allure. However, a distinctive trait of Ireisu is that each member possesses an overwhelming individual charisma, capable of instantly dominating the space. Naiko’s performance of “Kyou mo Ashita mo Asatte mo Kyunshi” immediately shifted the atmosphere to one of sheer positivity.

During the song, Naiko delivered a powerful message: “Our dream as Ireisu is Tokyo Dome. But Ireisu, the six of us alone, cannot yet reach Tokyo Dome. That’s why, with the strength of everyone here today, all the listeners who support Ireisu, the companies, the content creators, the staff who always support Ireisu and VOISING, the Ireisu members, and everyone involved in creating this amazing live concert. And to everyone who couldn’t make it today but always supports us. With the combined power of each and every one of you, let’s go to Tokyo Dome together. Thank you always, I love you all!”

Emotional Ballads and Expressive Performances

Yet, amidst such passionate declarations, the emotional stages continued. If’s heartfelt vocals resonated deeply in “Mikansei Moratorium,” followed by Yuusuke’s vibrant, unbridled vitality shining through in “NAKEDANSWER.” The Otona-gumi (Naiko, If, Yuusuke) then connected their voices in “Hello Again,” exuding the steady composure of their senior status. Naiko enveloped the audience with kindness, If conveyed his emotions directly, and Yuusuke sincerely offered courage. In their distinct styles, the trio painted a picture of hope.

More Intermission Antics: Tsundere Confessions

The latter half of the intermission video presented two challenges: “fan service to the last chorus of ‘Koi no Yakusoku'” and “shouting gratitude to listeners with full tsundere flair.” Shou effortlessly cleared the latter, declaring, “I don’t really get happy about the comments I always receive, but there might be a part of me that sometimes thinks about trying a little harder with activities, or maybe not. So, there’s one thing I want to say to you all. Thank you always!”

Yuusuke, on the other hand, confessed, “It’s not that I’m not happy about your reactions. Because you all say such things, we Ireisu are growing bigger and bigger. We might even exist because of you, so I’ll say it just this once. Thank you so much, seriously!” He then writhed in embarrassment, a sight that deeply moved the hearts of the Irerisu.

Diving into Darker Realms: The Final Spurt

For the final spurt, Ireisu launched into a series of alluring performances, starting with “C.O.G,” followed by “Place to be” and “Reibangai,” captivating the audience with their enchanting staging. While the image of the six members is often associated with bright and clean concepts like dreams, companions, and promises, they proved their mastery of dark and edgy aesthetics. They skillfully manipulated their voices and auras, showcasing the full breadth of their expressive power. Even in “CiRCUS,” they exuded a sexy allure, captivating the hearts of the Irerisu.

A Wave of Gratitude: Thank You to the Fans

After a session dedicated to introducing the band members, brimming with summer freshness and emotional intensity, Ireisu moved into a section dedicated to expressing their gratitude. They began with “Promise,” the song that heralded Ireisu’s second chapter. As their 4th anniversary song, “Ai wo Arigatou,” filled the venue, the live concert was already reaching its grand finale. The sentiment of “Thank you” gently settled into the hearts of every Irerisu.

Unforgettable Finale: Jumping Towards the Future

While ending on such a sweet, heartfelt note would have been lovely, the concert’s title, “Everybody -Matsuri- FESTIVAL !!”, ensured it wouldn’t conclude merely immersed in emotion. Ireisu instantly heated up the venue with “Jinsei Ouka,” their first song with dual centers, shifting into full gear. The concert reached its explosive climax with a collective jump during “Stay High!!,” shaking K Arena and imprinting a “mysterious and unforgettable memory” into everyone’s minds.

Encore: Connecting with Irerisu

Soon after, the encore began with “Hoshifuru Fairytale,” the lead track from their Nippon Budoukan live. The members walked around the audience, making eye contact and engaging directly with the Irerisu.

Heartfelt Messages and Grand Ambitions

During the final MC, Naiko addressed the crowd, “Ireisu’s summer live concerts are themed around ‘going home with a smile,’ so let’s all take our smiles home today and live strongly from tomorrow onward.” If then passionately shouted his love, “To be able to perform live with my beloved members and my beloved fans, there’s nothing more I could ask for. (Without a microphone) I love you all!” Yuusuke, with resolute ambition, declared, “We will take this many people with us to Tokyo Dome. Seriously, yoroshiku (please support us).” The grand finale featured “Yuukyuu Kyuuka,” creating a happy atmosphere. They playfully improvised lines, bringing the encore to a bright and energetic close.

A Double Encore and Surprise Reveal!

Just when everyone thought it was over, a special video featuring a tour digest and the Festival God was shown. A wave of surprise swept through the venue when it was revealed that Hyadain (Maeyamada Kenichi), who composed and wrote the lyrics for “Ire Sama!!!!!!!!!!!”, was the voice of the god. The unexpected twist delighted the Irerisu, filling the venue with joyous cheers.

Then, “Ire Sama!!!!!!!!!!!” dropped for the second time that day, leading into a thrilling double encore. Both the members’ performance and the Irerisu’s calls exuded a fierce energy, as if declaring, “We’re giving it our all!” They poured out every ounce of their current strength, creating a hot night that defied the midsummer heat.

Looking Ahead: Ireisu’s 5th Anniversary Online LIVE

After the entire live concert concluded and the members disappeared from the stage, words appeared on the screen: “Filming is allowed from now on.” This was followed by a preface of “Super Important Announcement from Ireisu,” revealing the “Ireisu 5th Anniversary Online LIVE.” The “Ireisu Summer Tour 2025 ‘Everybody -Matsuri- FESTIVAL !!'” not only energized the summer of 2025 but also connected a promise for the future, bringing the spectacular event to a close.

The “Ireisu 5th Anniversary Online LIVE” is set to be a free online live concert, accessible to everyone via Ireisu’s official YouTube channel on October 9th, marking their 5th anniversary. This “live-action” online performance promises a special experience, allowing fans to feel the members’ charm more authentically. Don’t miss this unique night connecting Ireisu’s past journey with their future aspirations.