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W Seijin Shiki '40 Matsuri': A Celebration of Friendship and Nostalgia

On March 28, 2026, a unique gathering will take place at the Cerulean Tower Tokyu Hotel in Shibuya, Tokyo. This event, titled W Seijin Shiki '40 Matsuri', is organized for those born between April 2, 1985, and April 1, 1986—a celebration of their 40th birthday. This event promises to be a nostalgic evening filled with music, friendship, and heartwarming memories.

The organizers have exciting news as they announce the attendance of the legendary group Ayaman Japan, known for their catchy tune, Poi Poi Poi Poi Poi Poi Po Pii. They skyrocketed to fame in the early 2010s, and their participation adds a layer of excitement for attendees reminiscing about their youth.

About Ayaman Japan

Founded in 2010, Ayaman Japan captured the hearts of many with their vibrant performances and the infectious repetition of Poi Poi Poi. Despite the departure of original members Fantajista Sakura in 2013 and Ruki Tae in 2015, the excitement of their reunion for this event has fans buzzing. They perfectly align with the event's target demographic, sharing the same birth years as the participants, creating a deeper connection to their audience.

After achieving significant recognition, including the New Artist Award at the Japan Gold Disc Awards, their comeback for this one-night-only performance is expected to draw a crowd of 300 to 500 participants, all eager to relive the unforgettable memories of their youth.

Event Details

Name: W Seijin Shiki '40 Matsuri'
Organizer: Ken Doi, W Seijin Shiki Executive Committee Chair
Date: March 28, 2026
Venue: Cerulean Tower Tokyu Hotel, Ballroom
Location: 2F, 26-1 Sakuragaokacho, Shibuya, Tokyo
Attendance Limit: 300-500 people
Eligibility: Open to classmates born between April 2, 1985 - April 1, 1986
Entry Fee:

• - Last Minute Discount Tickets: 19,000 yen (Men), 13,000 yen (Women)
• - General Tickets: 20,000 yen (Men), 14,000 yen (Women)

Dress Code: Formal wear is recommended.

• - Men: Suits, Tuxedos, Traditional Japanese wear
• - Women: Dresses, Traditional kimonos, Elegant outfits

Note: Beach sandals and casual wear are not permitted.

In addition to the music and memories, the event has a noble purpose. All profits generated will be donated to charitable activities aimed at helping children both in Japan and worldwide, promoting a sense of community and kindness among attendees.

For those interested in purchasing tickets, the link is available here.

Stay Connected

To stay updated on the latest announcements and lineup details, participants are encouraged to follow the official LINE account for the W Seijin Shiki '40 Matsuri'. This platform will provide vital information and foster a community spirit leading up to the event.

Contact: Ken Doi, W Seijin Shiki Executive Committee Chair
Address: 19F, Ebisu Garden Place Tower, 4-20-3 Ebisu, Shibuya, Tokyo, 150-6019
Email: [email protected]
Official LINE: Join Here

Experience the nostalgia and excitement of your formative years with classmates and special guests, making memories that will last a lifetime!