The Excitement from Magazine Back Covers Returns! Sunhoseki Fair Comes to Yamaguchi's Onoda Sunpark for a 3-Day Limited Event

Memory-Tech Tsukuba Co., Ltd., Interactive Content Division Sunhoseki (Headquarters: Chikusei City, Ibaraki Prefecture; President and CEO: Shinya Suzuki) will host the 'Sunhoseki Fair' for three days from Friday, June 26, 2026, to Sunday, June 28, 2026, at the Central Court on the 1st floor of Onoda Sunpark, a commercial facility in Onoda City, Yamaguchi Prefecture.

The event will feature a wide array of charming and exciting items unique to Sunhoseki, including accessories, stationery, small goods, and character merchandise.

Sunhoseki Fair

Don't miss Sunhoseki's beloved original character, 'Hoppetchan'.

At the venue, visitors can discover special Hoppetchan items available only during this event.

Additionally, a special hands-on experience titled 'Puni-Puni Drop Ring Making' will be offered exclusively for this fair.

Participants can choose their favorite colored Hoppetchan parts and ring base to create their own original ring.

This limited-time event offers nostalgic joy for those who enjoyed Sunhoseki in the Heisei era and fresh, delightful experiences for today's children—perfect for family enjoyment.

Event Background: Sunhoseki Regains Popularity Amid the Heisei Retro Boom

Sunhoseki is a brand that has long supported girls' sense of 'cuteness' through accessories, lifestyle goods, and character products.

In the past, through back covers of magazines and manga, as well as catalog shopping, it delivered 'affordable cute accessories' and the 'joy of choosing your own favorites' to children across Japan.

Recently, as interest in 'Heisei-era retro' grows in fashion, lifestyle goods, characters, and toys, Sunhoseki is once again drawing attention.

For adults who were fans during the Heisei era, it evokes nostalgic memories.

Meanwhile, for today's children, its colorful, pop designs and accessible price points feel refreshingly new.

The 'Sunhoseki Fair' at Onoda Sunpark offers a real-life opportunity to experience this blend of nostalgic charm and modern appeal.

Event Highlights

1. A Grand Collection of Sunhoseki's Cute Items

The venue will sell a variety of cute and colorful Sunhoseki-style accessories, stationery, small lifestyle goods, and character merchandise.

With affordable pricing and easy selection, the lineup is designed to delight both children and adults.

2. The Popular Character 'Hoppetchan' Makes an Appearance

'Hoppetchan', Sunhoseki's original character, is a beloved mascot known for her soft, rounded shape and large, adorable eyes.

She gained a strong fanbase during the Heisei era and remains a popular symbol of the Sunhoseki brand.

The fair will feature a range of Hoppetchan-related merchandise.

Be sure to look out for rare Hoppetchan items available only at the event venue.

3. Exclusive Fair Experience: 'Puni-Puni Drop Ring Making'

The highlight of this event is the workshop 'Puni-Puni Drop Ring Making'.

Choose your favorite colored Hoppetchan parts and ring base to create your own unique ring.

The fee is 550 yen including tax.

Completed rings can be taken home immediately, making it a perfect keepsake from the event.

This hands-on experience is enjoyable not only for children but also for adults who cherished Sunhoseki during the Heisei era.

Event Overview

・Event Name: Sunhoseki Fair

・Venue: Central Court, 1st Floor, Onoda Sunpark (6-4-1 Nakagawa, Onoda City, Yamaguchi Prefecture)

・Dates and Hours: June 26, 2026 (Fri): 13:00–18:00 June 27, 2026 (Sat): 10:00–18:00 June 28, 2026 (Sun): 10:00–17:00

・Workshop: Puni-Puni Drop Ring Making

・Participation Fee: 550 yen (tax included)

・Description: A hands-on experience where participants choose colored Hoppetchan parts and a ring to create their own original ring.

※ Operating hours vary by day. ※ Products and workshop details are subject to change without notice. ※ Limited quantities available for products and workshop slots. May end early if sold out.

About Sunhoseki

Sunhoseki is a brand that has long supported girls' sense of 'cuteness' through accessories, lifestyle goods, and character merchandise.

For many years, it has been beloved by fans primarily through catalog shopping, and now it operates manufacturing, sales, promotion, and licensing businesses centered on its two major content pillars: 'Sunhoseki' and 'Hoppetchan'.

The official online store offers a wide range of products, including Hoppetchan merchandise, accessories, stationery, lifestyle goods, and fashion accessories.

In recent years, the brand has shifted toward a business model combining licensing, pop-up events, SNS, e-commerce, anime, and international expansion.

With co-creation with fans at its core, Sunhoseki is driving brand revitalization and growth.

Business Overview and Inquiries

Business Name: Memory-Tech Tsukuba Co., Ltd., Interactive Content Division Sunhoseki

Address: 3F, 3628 Yamanokami, Chuo City, Yamanashi Prefecture 409-3845

Business Overview: Manufacturing, sales, promotion, and licensing centered on the two major content pillars 'Sunhoseki' and 'Hoppetchan'

Official X: https://x.com/sunhoseki

Official Instagram: https://www.instagram.com/sunhoseki/

Online Shop: https://sunho.store/

Corporate Site: https://www.memory-tech-tsukuba.jp/