A manga that is essentially the story of Enix from the time it starts working with games, until its release of the series it became known for, Dragon Quest. All the characters are real Enix employees at the time. You get to see the developers as real people, who agonize over everything, like how big to make the text boxes, what should NPCs say, etc, as well as how they get along with each other.
*“Cross-dressing is the manliest act that only men can do—”* Such is the unusual teaching of the sect known as the Cross-dressing School. Chiharu, a novice monk who just can’t get used to wearing women’s clothes, spends his days constantly being scolded. But one day, he falls in love at first sight with Komari, a real girl who visits the temple. To make things even more complicated, she calls his cross-dressed appearance “cute”…!? (Source: Square Enix, translated) *Note: Originally self-published, was then licensed by Square Enix for serialization.*
Papa (Sousuke) and Mama (Sakura) are childhood friends and now are husband and wife. They have a son who's a bit precocious named Takkun. *Note: Includes 3 extra chapters.*
The manga centers on a club calling itself the "handicraft club," whose members secretly meet in an off-limits and abandoned school building. One member of the club finds a book in a second-hand bookstore that describes how to make a "doll." They gather cloth, twigs, sweets, glass, and rain water, and attempt to make something that resembles a human being... (Source from: MangaUpdates)
The only one who can save the magical girls… is me! Magical girls continue to battle monsters from another world. But it was nothing more than a proxy war waged by a superpower! Scheming, espionage and... even murder, all played out using the supernatural power of magic. Who can save these wounded and exhausted girls―――! The hugely popular web manga, which has surpassed 1 million hits and pioneered a new frontier in the magical girl genre, has been completely redrawn and is finally being released as a long-awaited comic book series!!
The Dark Hunters, agents of vengeance who eliminate evil that goes unpunished. In this modern age, where their very existence has become the stuff of urban legends, there was a young girl who hunted down evil as a Dark Hunter. Her blood-soaked requiem, a story composed of the dying screams of sinners, delves into the light and darkness of the human world.
The new main character is Hiroshi, a 15-year-old boy who can see the island in the sky. He and his friends enter Naraka High School as a test of courage but only he alone returns.
Children who died before their parents, change their 'cause of death' into weapons, and kill each other over chance of resurrection.... Youth Battle Royal Graffiti. (Source: GanganOnline)
In order to defeat the Demon King... lose your virginity to your allies! The hero and his party finally reach the Demon King's castle. However, the Demon King's room is cursed with a curse that any virgin who enters will die... In order to defeat the Demon King, the virgin hero and his fellow heroines try various schemes to lose their virginity... The heroines are shocked by the hero's terrible behavior... or so you might think, but they are all in love with the hero...!? A high-tension love and brain battle romantic comedy woven by the worst hero and the cute and easy heroines! (Source: Manga-Up; translated)
A sequel of "Gakuen Kakumeiden Mitsurugi"
One of Two Manga's Based on Square Enix's Strategy RPG Series "Front Mission"

