Father of Constructs

Lorith's magic is fading. Centuries ago, heroic adventurers stopped the World Boss' cycle of rebirth by reducing the creature to one hit point and sealing it away — but by ending one calamity, they halted the natural flow of magic within the world and brought about the Havoc Plague. With all civilization now on the brink of collapse, humanity's only hope is to find and kill the World Boss again. When the Plagued janitor Harvey accidentally kills the missing World Boss, he gains a million experience points — making him the target of almost every would-be adventurer in the world. Burdened with ancient knowledge and hunted by countless rivals, he must join with unlikely allies to find the reincarnated World Boss and defeat it again before it can ravage the world anew.

Harvey killed the World Boss. Now he must clean up the mess. On the cusp of a second lease on life, Harvey, Tabitha, Maywen, and Reacher have one priority: to level up before the World Boss regenerates. Lorith is alive again, but the remnants of centuries of toxic magic pollution linger. The world needs more healing than even someone with a Legendary class can administer at level 3. Between monsters and mysterious villains, Harvey must confront a cruel reality — will he be content to let those he cares about defend him, or will he embrace his destiny and become the Master of Steel?

At level five, Harvey has been rejuvenated — no longer hindered by his age. He and his adopted family journey to Saito to find their kidnapped allies. The adventure blends dungeon crawling, base-building, and intense tower defense as Harvey and Reacher navigate through uncharted territories, confront armies, and craft magical items that defy imagination. With ancient secrets waiting to be discovered and battles that test their limits, they might just achieve the impossible — reaching level six.

Time is running out and the most ambitious adventurers in the world are coming after Harvey and his friends. Harvey, Reacher, and Tabitha have all been touched by the Eldritch and gained incredible new abilities — but at what cost? As word reaches them of plots to capture Harvey and kill Felodin, the odds dramatically shift against the friends as the fate of the world hangs in the balance.

The World Boss is about to re-spawn, and Harvey has much still to do. He may have come a long way, but will he have what it takes to face the might of the world's Adventurers, the wrath of the Undead, and the System itself? Ultimate Crafter concludes the first arc of the Father of Constructs series.