King’s Hawaiian, America’s No.1 sweet roll brand, will make its first appearance at the “Carro presents NACK KEYAKI ON-DO ～ON the music, DO the dance～” summer outdoor event held in Saitama City. From July 31 to August 2, 2026, visitors to the event at Keyaki Hiroba near the Saitama Shintoshin GMO Arena can enjoy free samples of the brand’s signature Original Hawaiian Sweet Rolls.
Alongside the event, two popular restaurants in the Keyaki Hiroba area, Seiren and Serafina New York, will offer special collaborations featuring King’s Hawaiian sweet rolls. Check the event dates and the free roll offers listed in the facts table below before you visit.
About King’s Hawaiian at NACK KEYAKI ON-DO
King’s Hawaiian, which officially launched in Japan last year, is known for its soft, fluffy sweet rolls with a gentle sweetness that has won hearts across the U.S. At this three-day event, the brand will present three special experiences: free tasting of their original sweet rolls, a limited-edition set including a 12-pack of sweet rolls and original goods, and a social media campaign offering exclusive stickers for followers and posts tagged with #kingshawaiian or #キングスハワイアン.
In addition to the event, the two local restaurants will serve special menus featuring King’s Hawaiian sweet rolls. At Seiren, customers who order food during the event period will receive one complimentary sweet roll, perfectly pairing with rich Chinese flavors. Seiren will also offer a limited “Taiwan Dog” slider featuring a juicy Taiwanese sausage in a King’s Hawaiian roll. At Serafina New York, guests ordering meat main dishes will enjoy a free sweet roll, blending authentic Italian-American cuisine with Hawaiian sweetness.
Highlights
- Free tasting of King’s Hawaiian Original Hawaiian Sweet Rolls at the event.
- Exclusive limited-edition set with 12 sweet rolls and original goods available only at the event.
- Social media followers can receive original stickers by following or posting with designated hashtags.
- Special collaboration menus at Seiren and Serafina New York restaurants, including free sweet rolls with orders.
- Limited “Taiwan Dog” slider featuring Taiwanese sausage available at Seiren’s event booth.
Event & Collaboration Details
| Item | Details |
|---|---|
| Name | King’s Hawaiian at Carro presents NACK KEYAKI ON-DO |
| Menu / items | Original Hawaiian Sweet Roll (free tasting and free with orders at restaurants); Limited “Taiwan Dog” slider; Limited-edition 12-pack sweet roll set with original goods |
| Location | Keyaki Hiroba, near Saitama Shintoshin GMO Arena, Saitama City |
| Address | 10 Shintoshin, Chuo-ku, Saitama City, Saitama |
| Period | July 31, 2026 (Fri) – August 2, 2026 (Sun) |
| Price | Free tasting; Limited-edition 12-pack sweet roll set price not specified; Free sweet roll with qualifying orders at Seiren and Serafina New York |
