The ULTIMATE Kekkai Sensen collection
The manga split up in three parts;
- Kekkai Sensen (KKS) - 33 Chapters
- Kekkai Sensen: Back 2 Back (B2B) - 32 chapters
- Kekkai Sensen: Beat 3 Peat (B3P) - ongoing
Most of the parts have been released as seasonal manga (the first chapters of Part 1 were bi-monthly), meaning that only 4 chapters release per year with an average page count of around 60 pages per chapter.
Only the first part has been printed physically, but hasn't received a reprint in a long time, part 1 is purchasable as an ebook on amazon, but it's not really available on any specific app or service, 2 and 3 aren't available anywhere through official means.
I would definitely still advice looking up the chapters online, the art is amazing and there are not only a lot of cut chapters from the first and second part of the manga, but everything from chapter 14 of part 2 has not seen the light of day in the anime format (which contains one of the longest story arcs in the series, covering a whopping 13 chapters straight)
Chapters that are currently unadapted
KKS: 6, 13, 19, 22. (4)
B2B: 2, 4, 8-12, 14-32 (26)
B3P: 1-7 (ongoing) (7)
Total: 37
Note: some of the earlier B2B chapters are officially listed as "half chapters" (so chapter 1.2, 1.3 etc) however for the sake of this list, and MAL listing them as full chapters, I decided to just list these as full chapters
Supersonic monkeys, vampires, talking fishmen, and all sorts of different supernatural monsters living alongside humans—this has been part of daily life in Hellsalem's Lot, formerly known as New York City, for some time now. When a gateway between Earth and the Beyond opened three years ago, New Yorkers and creatures from the other dimension alike were trapped in an impenetrable bubble and were forced to live together. Libra is a secret organization composed of eccentrics and superhumans, tasked with keeping order in the city and making sure that chaos doesn't spread to the rest of the world. Pursuing photography as a hobby, Leonardo Watch is living a normal life with his parents and sister. But when he obtains the "All-seeing Eyes of the Gods" at the expense of his sister's eyesight, he goes to Hellsalem's Lot in order to help her by finding answers about the mysterious powers he received. He soon runs into Libra, and when Leo unexpectedly joins their ranks, he gets more than what he bargained for. Kekkai Sensen follows Leo's misadventures in the strangest place on Earth with his equally strange comrades—as the ordinary boy unwittingly sees his life take a turn for the extraordinary. [Written by MAL Rewrite]
For a rare occasion, the members of Libra have come out of the shadows to dine with an important guest: a royal next in line for the crown of his country. To show their visitor the finest that Hellsalem's Lot has to offer, the group decides to dine at Molzzogazza, the cream of the crop as far as restaurants go in the city. As the success of this dinner may prove to be beneficial to Libra, Steven A. Starphase mounts the pressure on the team to be on its best behavior and avoid screw-ups. However, Steven has made one oversight. Molzzogazza, famous for its cuisine's indescribable and transcendent flavors, serves food so good that most people lose their minds eating it. Though the ragtag team may do their best to be cordial, the food is sure to unwind their composure, threatening the success of the dinner and leaving them unaware of an oncoming threat to the restaurant. [Written by MAL Rewrite]
A recap episode of episodes 1 through 10 of Kekkai Sensen. Leonardo Watch reflects on his experiences at Libra.
Three years ago, a gateway between Earth and the Beyond opened in New York City, trapping extradimensional creatures and humans alike in an impermeable bubble. After the city's restoration, monsters, magic, and madness are common findings in the area now known as Hellsalem's Lot. Leonardo Watch, a young photographer who unwillingly obtained the "All-seeing Eyes of the Gods" in exchange for his sister's eyesight, came to this paranormal city to find answers to the mysterious power that he possesses. He later finds his life drastically changed when he joins Libra, a secret organization of people with supernatural abilities dedicated to maintaining order in the everyday chaos of Hellsalem's Lot. However, this is only the beginning of Leonardo's unexpected journey ahead. Regardless of the constant threat of otherworldly enemies, he is determined to uncover the secrets of his power and find a way to restore his sister's eyesight. Kekkai Sensen & Beyond follows Leonardo as he sets off on more crazy adventures with his comrades, fighting to ensure peace and order. [Written by MAL Rewrite]
Bundled with the 5th volume of the Kekkai Sensen: Back 2 Back manga.