Black Joe is a Nuuk (under Elysion's ugly-bird spell) that serves as Pieberry's guardian in Witch Spring and Witch Spring 2. In spite of that, he is only useable as a pet in the second game; in the first game, he follows Pieberry around but cannot do anything outside of plot cutscenes.
Some time before the main story, Elysion traveled to Nuuk Plains, where Black Joe resided; there, he was known as the strongest Nuuk. Elysion wanted a guardian animal, but Black Joe refused and fought her. He lost, however, and was forced to become her guardian.
Shortly before the war, Black Joe appears at Luna's house to pick up the toddler Pieberry (then known by her true name, Lucia), who had wandered away from home and was being shown around Vavelia Village by Aramute. Aramute mistook Black Joe for a monster before Black Joe clarified that he was under Elysion's ugly bird spell so he wouldn't scare the villagers with his true form.
After the start of the Spring War, Black Joe was ordered by Elysion to take Pieberry away, and she then blocked the path to Pieberry's house with Balt. Black Joe did not stay with Pieberry, but instead watched over her from afar.
Black Joe is a mandatory enemy once in the game, at the very beginning. If you go to Durok Temple, you will eventually fight him a second time in a plot-related event, but is possible to never go to Durok Temple, and thus never reach the point where you must fight him a second time.
Despite being Pieberry's guardian, he has no abilities in the first game outside of plot-related events.
Witch Spring 2Edit
|Physical Defense||Magical Defense||Become Pet||Location|
|A borrowed pet from Pieberry. Pieberry's servant who can talk. Can only be summoned in specific locations. In battles, it takes the enemy's blow instead of its owner and passes out. (If it is a range attack, it diverts the enemy's attention and reduces the damage inflicted to owner by 50%.) The third time it passes out, it turns back into Gold Nuuk, which is its original form.|
While Black Joe is never fought in Witch Spring 2, he is now usable as a pet that can be lent to Luna.
Black Joe can be acquired two ways: the first is by beating Pieberry in a race in Chapter 4. If you lose to her, he will automatically be acquired at the end of Chapter 4. He can summoned in most areas, but there are some exceptions: Icy Plains, at any point after getting imprisoned in Chapter 5, in Temar's Room (post-game), and possibly in the Mind Room (post-game).
Black Joe is among the strongest pets in the game by virtue of being able to negate most damage Luna takes. When coupled with the Ice Hammer, whose freezing effect will slow down the enemy, Luna can take minimal damage from powerful opponents as Black Joe will reawaken to take the blow before they can get their next hit in.
- According to Elysion in the "A Peaceful Day" ending in Witch Spring, she can't permanently remove Black Joe's ugly-bird spell because she has forgotten what he looked like without it. On top of that, both she and Pieberry like his ugly bird form, so they've kept him like that even after the war.