Nabi: The Prototype
A collection of one-shots, mostly centering around a rough boy, a girl who he is close to, and what happens as they grow up.
Rosario to Vampire: Prototype
A prototype one-shot of the Rosario to Vampire's first chapter.
Fate/Prototype: Tribute Phantasm
This book contains anthology comics, illustrations, settings introductions and interviews.
Full Metal Alchemist: Prototype
An alternative first chapter introducing the Elric brothers and the law of Equivalent Exchange.
Magi: Sinbad no Bouken - Prototype
A prologue manga series that tells the story of Sinbad's early life and the conquest of the first Dungeon, Baal. (Source: Magi Wikia)
Kiri - the route of infection KANARIA
In order to protect the world from the virus “Torikago” that has infected humanity, having fulfilled the condition of living as a normal human being, the young girl, Kiri, conceals the “World’s Memory” within her body. The world loved by the Torikago. The world that continues to reject the Torikago. Over the course of time, while the world erodes the memories of the girl who does not possess a free heart, she proceeds to fall in love… “In fact, why has the job of maintaining world peace even been entrusted to people like us?” (Source: Fateful Encounters)