Wiedergeburt: Legend of the Reincarnated Warrior: Volume 15 - WIEDERGEBURT: Legend of the Reincarnated Warrior, #15

A NEW JOURNEY! Eryk accomplished all he set out to in Nevaria. They successfully defended against the Demon Beast Invasion and Kari did not have to marry Grant Leucht. To make a good situation even better, Eryk married four amazing women and had a child with one of them. But his journey isn't over yet. His ultimate goal has not been completed. To kill the Great Overlord of the Seventh Realm. And so, Eryk sets off for the Endless Desert with Kari, Fay, Siv, Lin, and his son, Raul.
While in the vast stretch of sand dunes, they'll meet faces both new and old. This includes someone whom both he and Kari are familiar with from the previous timeline-an old friend who's experiencing some strange troubles.