Suddenly, dungeons have appeared all over the world in modern Japan. Omomo Rei is a genuine loner in the real world, but in the dungeon, he is the only person in the world who has reached the maximum level. Rei, who has cut off all ties with society and is completely absorbed in the dungeon, one day saves a beautiful and famous streamer, Yuria, who has 10 million subscribers, from a crisis. Rei unintentionally goes viral with her dungeon stream, and contrary to her desire for a peaceful daily life, she is drawn into the further secrets of the dungeon, which involve the underworld and even the country!

Adventurer Lewis is nearing 40 and still stuck at E-Rank. Mocked by his guild as the "Immovable E," he’s become something of a laughingstock. One day, while fighting with his life on the line, Lewis manages to defeat a monster far above his level. As a result, his level increases for the first time in his life, and he awakens a new skill—the legendary "Unconditional Victory," once wielded by a hero of old. What exactly is the true nature of this skill that can mow down massive enemies with a single blow...!?

In a world where everyone is given a skill when they turn 18, everyone had high hopes for Arios, the son of a sword saint. Everyone thought he would definitely be given the "Sword Saint" skill... but the skill he was bestowed with was "Cheat Code Manipulation." This unprecedented skill was treated like trash, and Arios was banished from his family home. However, with this useless skill, he was able to manipulate extraordinary cheat codes! His childhood friend, the princess, joins him, and he unwittingly unleashes his unrivaled power in his new land! (Source: Gaugau Monster, translated)

In a world where everyone is bestowed a skill at the age of 18, Arios, the son of a sword saint, was without a doubt expected to be granted the Sword Saint skill, but... was instead given a skill called Cheat Code Manipulation. With the unprecedented skill being treated like garbage, Arios gets thrown out of his home. However, with this useless skill, he is able to control some not-so-ordinary cheat codes! With his childhood friend, the princess following him, he spreads his peerlessness across a new land without even knowing it! (Source: Futabasha, translated)

Tsukushi Kirishima is a born loser, a second year high school student who is mocked even by his underclassmen. He has been granted a mystery skill called "Ignore Rules," but he doesn't know how to use it, so he struggles in obscurity both as a student and an explorer. One day in a dungeon, he encounters the famous streamer Miru Ayatsuki. Miru's goal is to film the "emergency monster" that has suddenly appeared in the dungeon, but its strength poses an uphill battle and he finds herself in mortal danger! The same moment Tsukushi intervenes and comes to her rescue, the mystery skill "Ignore Rules" activates... (Source: Futabasha, translated)

[The hero who was betrayed by the entire nation in his previous life unleashes his unparalleled, one-of-a-kind, strongest magic!]Hero Lecter, burdened with the hopes of his people, trains diligently every day to defeat the Demon King. As the time for his departure approaches, a man calling himself a "transmigrator," Baylif, suddenly appears. He challengesLecter to a duel, saying "whoever wins will be the hero," but is defeated by Baylif's overwhelming strength, which is impossible in this world... Months later, Lecter wakes up to find that Baylif has already defeated the Demon King and is being worshipped as the "hero"—!? Sensing something is wrong with Baylif's evil aura, Lecter attempts to fight back, but is scorned as a "former hero," betrayed by his people, branded a demon, and loses his life.It seemed as though he had ended his life in despair, but he obtains the now-unavailable strongest magic, "Loss Magic," and is reincarnated into the world 10 years later. In the world 10 years later, magic has declined at the hands of Baylif. Only Lecter can save this world—the former hero becomes the strongest sage and saves the world from the shadows!

In modern-day Japan, where dungeons have suddenly appeared worldwide, our protagonist, Rei Omomo, is a true introvert in real life but is the only person in the world with a maxed-out level in the dungeons. Rei, who has cut off ties with society to fully immerse himself in dungeons, ends up saving the famous cute streamer “Yuria,” who has 10 million subscribers, from a crisis one day. Unintentionally going viral through dungeon streaming, Rei finds himself dragged deeper into the mysteries of the dungeons—mysteries involving the underworld and even national governments—despite his wish for a peaceful life.

Suddenly, dungeons have appeared all over the world in modern Japan. Omomo Rei is a genuine loner in the real world, but in the dungeon, he is the only person in the world who has reached the maximum level. Rei, who has cut off all ties with society and is completely absorbed in the dungeon, one day saves a beautiful and famous streamer, Yuria, who has 10 million subscribers, from a crisis. Rei unintentionally goes viral on Yuria's dungeon stream, and contrary to his desire for a peaceful daily life, he is drawn into the further secrets of the dungeon, which involve the underworld and even the country!

Tsukushi Kirishima is a born loser, a second year high school student who is mocked even by his underclassmen. He has been granted a mystery skill called "Ignore Rules," but he doesn't know how to use it, so he struggles in obscurity both as a student and an explorer. One day in a dungeon, he encounters the famous streamer Miru Ayatsuki. Miru's goal is to film the "emergency monster" that has suddenly appeared in the dungeon, but its strength poses an uphill battle and he finds herself in mortal danger! The same moment Tsukushi intervenes and comes to her rescue, the mystery skill "Ignore Rules" activates... (Source: Futabasha, translated)

Anthology of D.Gray-man doujinshi written by different artists. Pairings: Allen x Kanda, Kanda x Allen