The Anfecaserve GS516M motor grader was to maintain roads and flats area. Yet, in its original world, its company went bankrupt, and the machine was left unsold, untouched, and forgotten. Before it could be scrapped, it whispered a single wish:

"I wish I could fulfill my purpose… just once."

In response, a mysterious voice grants it a second chance in a medieval world where roads are rough, drainage is poor, and civilization struggles to connect its far-flung villages.
Now reborn in this new land, GS516M awakens by a dirt road where it meets Taren, a lonely boy fascinated by construction. Together, they set out to do something no adventurer ever cared for maintain roads, improve villages, and rebuild the land itself.
But GS516M is no ordinary machine. With the ability to transform into other Anfecaserve creations dozers, excavators, loaders and more it gains strength by working, slowly leveling up.