Ultimate Series: At One Hundred, I Return from the Battlefield

Two hundred years ago, Gu Mo transmigrated into the Ultimate series and joined the battle in which the Twelve Time-Space Realms went to war against the Demon Realm. When the Demon Realm's million-strong army, Demon Lord Diabolo, and nearly a hundred Demon Kings launched an assault on the Twelve Time-Space Realms' headquarters, he fought them all, taking on Demon Lord Diabolo and nearly a hundred Demon Kings! But that battle left him gravely wounded and buried on the Demon Realm's battlefield!

Two hundred years later!

He emerged from the dust of the Demon Realm's battlefield, but he was already two hundred years old. At that moment, he awakened a System. During the day, he remained two hundred years old, and his combat index could not reach its peak because of his injuries. At night, however, he returned to the age of twenty, and his combat index recovered to its peak!

To maintain and regain his twenty-year-old body, he had to draw upon the forces of good and evil in the Twelve Time-Space Realms. This would allow him to maintain his peak combat strength at age twenty. The stronger the force of good in the Twelve Time-Space Realms, the longer he could maintain it. Once goodness in the Twelve Time-Space Realms reached a certain level, he could permanently recover his twenty-year-old body and peak combat strength!

For this reason!

He founded one mysterious organization after another, and enrolled at Baley High School... where he became the vice principal!

This novel and its characters are entirely fictional. Any resemblance to real people or events is purely coincidental. Do not imitate.