10 Best-Selling Manga of Summer 2026: The Series Readers Chose
Kaiju No. 8 Takes First
Naoya Matsumoto’s Kaiju No. 8 led the BookWalker chart despite having already reached its finale. Kafka Hibino, a cleanup worker dealing with the remains of giant monsters, still hopes to join Japan’s Defense Force.
Fantasy Adventures Rank High
Shangri-La Frontier placed second, following high school gamer Rakuro Hizutome as he takes on a celebrated virtual-reality game. Playing as Sunraku, he enters in shorts and a bird mask and sets out to test the game’s limits.
Ryosuke Fuji’s ongoing series received digital Volume 26 from Kodansha on July 7, 2026. The story features Sunraku and his allies facing the serpent god before turning toward a conflict between powerful player clans.
Reincarnation, Romance And Comedy
Smoking Behind the Supermarket with You came fourth, while The 100 Girlfriends Who Really, Really, Really, Really, Really Love You placed fifth. The former follows salaryman Sasaki and supermarket cashier Yamada, who also appears as Tayama; the latter centers on Aijo Rentaro, whose 100 destined soulmates must all receive his love or face fatal accidents.
Key points
- Kaiju No. 8 took first place on BookWalker’s Summer 2026 chart.
- Shangri-La Frontier ranked second, with digital Volume 26 released on July 7.
- The chart measures BookWalker activity, not manga sales across all retailers.
- The listed rankings omit positions six through 10.