After passing away, a man reincarnates in a fantasy-like world as Will, an orphan raised by three undead warriors: Blood, the skeleton swordsman, Mary, the mummified priestess, and Gus, the ghost sorcerer.

It has been two years since Will and Menel rid the village of the beasts, leading to an uneasy peace; the lull comes to an end with an abnormal discovery in the forest, pushing the duo to investigate.

Turning 15, Will challenges Blood to a fight with real swords as his coming-of-age ceremony; Gus asks Will to lose on purpose; Will doesn't get a chance to ask Gus about what happened that day in the ruins before he heads into battle against Blood.

The God of Undeath Stagnate's sudden appearance catches the three undead off-guard; although his attempt to abduct Blood and Mary is interrupted by Gus, the black mist bursting from his chest leaves them no time to feel relieved.

On the verge of death, Will swears an oath to Gracefeel and rises to challenge Stagnate again; Stagnate tricks Will into fighting his shadow while he goes off to attack Blood and Mary; when he realizes what's going on, Will rushes back to the Temple.

Will departs from the city of the dead and sets foot in the outside world; after walking in the woods for several days, the first being he meets is Menel, a half-elf hunter.