Light Novel Volume 23

This is the twenty-third volume of the Mushoku Tensei light novel, which covers the Fourth Child arc. Its contents corresponds to the latter half of volume 22 of the web novel.

Synopsis
TO THE HEAVENS: THE TRIAL OF PERUGIUS

The fourth child Sieghard was born, with the same green hair as Laplace. However, one of the Perugius familiars who witnessed the scene, told to Rudeus and the others to come to the sky citadel with the baby.

"If this kid grows up and really causes a war with the human race then I will deal with it ... "Rudeus tries to prepare himself for his family.

When Perugius heard this, his answer was...

Chapters

 * Chapter 1: Green hair baby.
 * Chapter 2: Journey to the Heaven Continent.
 * Chapter 3: Heaven Continent Town "Artier".
 * Chapter 4: Naming.
 * Chapter 5: Parallel World Teleportation Magic Device.
 * Chapter 6: Nanahoshi's Fate.
 * Chapter 7: Mad Dog Returning to the Old Nest.
 * Chapter 8: North God and the adventurers.
 * Chapter 9: North God and the Soldiers.
 * Chapter 10: A Second.
 * Side Story: Geese and the last friends.

Adaptation Notes
Differences from the original web novels.
 * This volume covers the last 4 chapter of Web Novel Vol 22
 * In the web novel, in a short event, the baptize of Sieg occurred in the castle of Perugius, Meanwhile in the light novel, Perugius give to Rudeus a trial, and he travel with his wife's and Sieg to a old Ruins of Laplace in the Divine Continent, where Sieg receive his baptize.
 * New chapters of Rudeus and Eris traveling to Sword Sanctum and the Conflict Zone.
 * New Chapter about Geese and Badigadi.