In this book are collected three stories: "Poeyan", "Love Space '97" and "MONKEY". Each story has a different genre "psychological", "sci-fi" and "slice of life".

Satan Rchimedes returns to the earth after being sealed for one thousand years by a hero. The King tries to seal Satan once again by dispatching descendants of the hero. However, it's troublesome to find the genuine descendant, so the king chooses 75 hero-like people. This is the adventure of Alba, hero no.45, and his monitoring fighter Ross.

This is a manga remake of the first arc of the webcomic Senyuu. Most of the contexts are the same as the original, but in manga form instead and with various minor changes made to the plot.

Once upon a time, a Demon King named Rchimedes caused havoc and destruction in the Human World. He was sealed away by the great hero Creasion, and peace returned to the world. 1000 years later, Rchimedes has returned, a hole has opened up in the Human World, and countless monsters have sprung up. To prevent any further destruction, the King calls upon all 75 (probable) descendants of Creasion. This story focuses on the adventures of descendant number 45, Alba, and the royal soldier appointed to assist him, Ross. *Note: Includes 1 extra chapter.*

A side story of Senyuu. bundled with the first press release of the fourth Blu-ray/DVD volumes of the anime. It tell the story of how Ross and Alba meet.

The class representative, Saeki, uses an array of tactics to sleep during class. Tokimiya, the boy sitting next to her, tends to observe her different tactics and while doing so his interest begins to shift... In other words, Saeki wants to sleep. *Note: Chapter count includes 9 extras.*

The manga remake of the homonym webcomic. *Note: Includes 9 extra chapters.*

Shushu is a girl who enrolled in a school for "wolfman candidate," but she has to keep the fact that she's a girl a secret. Included one-shot: Volume 3: Gakumon (pilot)

A spin-off of Senyuu. bundled with the first press release of the second Blu-ray/DVD volumes of the anime. Spin-off focusing on Hero #14, Foyfoy Dran, and his royal soldier, Rudolf I. Athena. This story takes place during pre-series. Foyfoy and Rudolf are on a journey to subdue the Demon Lord. Foyfoy simply cares about the reward... but is that really the only thing he cares about?

The story is set on the Far Side of the Moon Cell, where BB used her abilities to create the Sakura Labyrinth. She brought over various Masters and Servants from the Moon Cell Holy Grail War on the Near Side, some taken instantly before their deletion and others brought during the sixth week. *Note: Includes nine extra chapters.*