10 Best Selling Manga Of Summer 2026

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BookWalker’s Summer 2026 manga chart offers an interesting snapshot of what readers were picking up between July 1 and September 30. Kaiju No. 8 took the top spot, followed by Shangri-La Frontier, while the rest of the top five included This Is Screwed Up, but I Was Reincarnated as a GIRL in Another World!, Smoking Behind the Supermarket with You, and The 100 Girlfriends Who Really, Really, Really, Really, Really Love You.
The rest of the chart showed the numbers 11 to 20 manga of summer 2026 as Granblue Fantasy; The Cursed Sword Master’s Harem Life: By the Sword, For the Sword; How to Deal When Your Intimidating Neighbor is Actually an Omega; Chained Soldier; The 100th Time’s the Charm: She Was Executed 99 Times, So How Did She Unlock “Super Love” Mode?!; Parallel Paradise; The Exiled Heavy Knight Knows How to Game the System (Omnibus); 2.5 Dimensional Seduction; The Fragrant Flower Blooms With Dignity; and Dorohedoro. This is a BookWalker-platform ranking, not a measure of all manga sales across retailers.
1 Kaiju No. 8
Naoya Matsumoto’s Kaiju No. 8 claimed first place, a notable result for a series that had already reached its finale. Its central character, Kafka Hibino, works cleaning up the remains left by giant monsters but has never abandoned his childhood ambition of joining Japan’s Defense Force. An unexpected transformation turns that dream into a dangerous contradiction.
The timing gave readers another reason to return, as VIZ released the 292-page English-language Volume 16 on September 1, 2026, marking the manga’s final volume. Kafka makes his last stand against the Daikaiju of the Meireki Era, bringing the long-running fight to its conclusion. That end point also offers newcomers a complete series to catch up on.
2 Shangri-La Frontier
Shangri-La Frontier follows Rakuro Hizutome, a high school gamer who usually takes pride in conquering notoriously bad games. When he finally tries a celebrated virtual-reality title, he brings the same reckless confidence to a much bigger challenge. Playing as Sunraku, he enters the game wearing little more than shorts and a bird mask, then begins pushing its limits.
Ryosuke Fuji’s ongoing adventure ranked second, supported by a steady stream of new material. Kodansha’s Volume 26 arrived digitally on July 7, 2026, just after the ranking period began. Its story sends Sunraku and his allies into a dangerous clash with the serpent god, before shifting toward a rivalry between two powerful player clans.
3 This Is Screwed Up, but I Was Reincarnated as a GIRL in Another World!
Ashi’s isekai manga takes a different route through reincarnation. Its protagonist, Ren, was a male research scientist on Earth before waking in a fantasy world as an orphan girl. After being sold to a dangerous merchant, Ren escapes and draws on scientific knowledge from the previous life, alongside newly awakened magical abilities, to survive.
Volume 19 reached English-language readers on June 16, 2026, shortly before the chart’s July start. That installment puts Ren under pressure after a surprise attack leaves her afraid of men, despite having once been one. With help from friends Lillie and Arisa, she begins preparing a new invention: armor built around a golem.
4 Smoking Behind the Supermarket with You
Jinushi’s romantic slice-of-life Smoking Behind the Supermarket with You series centers on Sasaki, a 45-year-old salaryman worn down by office life. His small daily comfort is the cheerful supermarket cashier Yamada, but one evening he misses her shift and meets a sharp-tongued woman named Tayama in the smoking area. Sasaki does not realize the two women are the same person.
That gentle identity-based comedy helped the manga secure fourth place, and its seventh English volume arrived during the chart window. Released July 7, 2026, Volume 7 complicates Sasaki’s feelings as he grows suspicious about Tayama and Yamada. A troublesome customer also unsettles Yamada, while her sudden absence pushes Sasaki to confront the store’s growing crisis.
5 The 100 Girlfriends Who Really, Really, Really, Really, Really Love You
Rikito Nakamura and Yukiko Nozawa’s comedy begins with Aijo Rentaro, a student who has been rejected by 100 girls. After asking a god for help, he learns that a mistake has made him destined to meet 100 soulmates. The catch is severe: every soulmate must receive his love, or she faces a fatal accident.
The series turns that outrageous setup into an escalating ensemble rom-com, with Rentaro trying to give every girlfriend meaningful attention rather than treating the premise as a simple gag. Seven Seas released Volume 18 on June 23, 2026, putting a fresh installment on shelves just before summer. Its fifth-place finish shows how strongly the sprawling cast continues to connect.
6 Grand Blue Dreaming
Grand Blue Dreaming brings college comedy to the seaside. After moving to the coastal town of Izu, freshman Iori Kitahara expects an ordinary start to university life, but his new surroundings pull him into the local diving club. The result mixes underwater excursions with chaotic parties, unruly friendships, awkward mishaps, and jokes that rarely stay restrained.
Written by Kenji Inoue and illustrated by Kimitake Yoshioka, the long-running series has a distinctive appeal beyond its outrageous humor. Diving gives the story a recurring sense of adventure, while Iori’s friendships keep it grounded in student life. Its sixth-place ranking suggests readers still enjoy returning to a manga where the beach is rarely peaceful.
7 Though I Am an Inept Villainess: Tale of the Butterfly-Rat Body Swap in the Maiden Court
This court fantasy follows Kou Reirin, a favored maiden whose future at the imperial court appears secure, and Shu Keigetsu, a rival treated as an outcast. Keigetsu uses forbidden magic to switch their bodies, leaving Reirin trapped in the form of the very woman who tried to ruin her standing.
The manga’s seventh-place finish coincided with the August 4, 2026 release of its ninth English volume. That installment brings the maidens into the Rite of Reverence, a competition that could influence their positions as future consorts. Reirin and Keigetsu must navigate court expectations while their complicated relationship continues to shift.
8 Witch Hat Atelier
Kamome Shirahama’s Witch Hat Atelier manga follows Coco, a girl who dreams of becoming a witch despite being told that magic is only available to those born with the gift. Her life changes after she secretly witnesses the traveling magician Qifrey casting a spell and discovers that magic works differently from what she had been taught.
The series stands out for the way its intricate artwork supports the rules of its fantasy world. Coco learns to draw spells with special tools and ink, turning magic into a craft that requires study, precision, and responsibility. Its eighth-place result reflects the lasting appeal of a thoughtful fantasy adventure with a richly imagined visual language.
9 Betrayed by the Hero, I Formed a MILF Party with His Mom!
This fantasy comedy follows Ceres after the Hero, Zect, expels him from their adventuring party. At his lowest point, Ceres encounters Shizuko, who happens to be Zect’s mother. Rather than returning to his old group, he sees an opportunity to pursue his long-standing dream of building an adventuring party made up of older women.
Seven Seas released the manga’s fifth volume on August 11, 2026, during the period covered by BookWalker’s chart. The series mixes revenge, fantasy-party politics, and deliberately outrageous romantic comedy, making its premise clear from the title alone. Its ninth-place position shows that the unusual isekai setup found a sizable audience on the platform.
10 The Ghost in the Shell
Masamune Shirow’s The Ghost in the Shell is the ranking’s classic cyberpunk entry. First serialized in 1989, the manga follows Major Motoko Kusanagi, a cyborg operative who investigates cybercrime in a future where human bodies and machines increasingly overlap. Its cases raise questions about artificial intelligence, memory, identity, and what makes a person human.
The franchise’s staying power is easy to understand, becuase its mix of tactical action and philosophical science fiction helped shape generations of cyberpunk storytelling. Kodansha also brought the work back into focus in 2026 with a Legacy Edition box set, featuring an uncensored presentation and new artwork from Shirow. The manga placed tenth on BookWalker’s summer chart.
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