We've decided to release Tengoku Goku birthday merchandise exclusively for members of the official fan club, "HYPSTER"!

The 15th release is "Heavenly Prison," featuring a "Complete Law Book-style Case" and a "Hair Comb (with business card-style card)"!

This set includes a box-shaped case modeled after the legal code, an essential tool for lawyers, and a chrome-plated hair comb, a must-have for maintaining a stylish hairstyle!

Why not slip a case into your bookshelf and get a taste of what it's like to be a lawyer?

As a bonus, I'll include a business card from Goku.

You can still purchase tickets if you join now.

Become a HYPSTER member and get it! 🎤🔥 

Reservations here 🛒

https://store.plusmember.jp/hypster/products/list.php?category_id=1887

＜HYPSTER Pre-order Sales ＞

・Reservation period:April 28, 2026 (Tue) 12:00 to May 5, 2026 (Tue) 23:59

• Estimated delivery date: Late June

*Only HYPSTER members can purchase this item.

*Delivery dates may change depending on traffic and weather conditions.

<Product lineup>

*All images are for illustrative purposes only. Actual products may differ.

*This product cannot be shipped together with any other items except for the "Complete Collection of Laws Case + Hair Comb (with Business Card Style Card) Heavenly Prison (with Bonus Postcard)". Please be aware of this beforehand.

◆ HYPSTER limited edition goods

• Law Book-style Case + Hair Comb (with business card-style card) Heavenly Prison (with bonus postcard) ¥6,000 (excluding tax ¥5,455)

*The above products will not be sold anywhere other than HYPSTER Limited Store.