Lotte launches Nijisanji collaboration hand warmers

Lotte has announced a collaboration between its portable hand warmer brand, Hokaron, and the popular VTuber group Nijisanji. The collaboration features two new products: ‘Nijisanji Hokaron Mini 8P’ and ‘Nijisanji Hokaron Haru Mini 8P’, scheduled for nationwide release in Japan on September 7, 2026.

The products feature original packaging designs showcasing four Nijisanji livers: Kanae, Kuzuha, Sasaki Saku, and Shiina Yuika. Additionally, customers can scan a QR code located inside the packaging to listen to four exclusive ‘original episodes’ featuring the voices of these four performers.

These items are based on the standard Hokaron line and are distinct from the ‘Hokaron On MOIST’ or ‘Hokaron On DRY’ series. Each pack contains eight pieces and is expected to retail for approximately 437 yen including tax.