Nabi: The Prototype

Drama Historical Shoujo

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

Shounen Vampire

A prototype one-shot of the Rosario to Vampire's first chapter.

Fate/Prototype: Tribute Phantasm

Action Fantasy

This book contains anthology comics, illustrations, settings introductions and interviews.

Full Metal Alchemist: Prototype

Action Adventure Comedy

An alternative first chapter introducing the Elric brothers and the law of Equivalent Exchange.

Magi: Sinbad no Bouken - Prototype

Action Adventure Fantasy

A prologue manga series that tells the story of Sinbad's early life and the conquest of the first Dungeon, Baal. (Source: Magi Wikia)

Fate/Prototype: Sougin no Fragments

Action Fantasy Magic

Prequel to Fate/Prototype.