Using Items
Use /item use item:<item> [cantidad] for items that support manual use. The slash command accepts up to 100 units at once, although some items impose their own behavior or only make sense one at a time. Kakashi blocks a second item-use operation while another one is still being processed.
What happens depends on the item. Recovery items can restore health, Ninken treats can restore companion energy, reward containers open into rewards, and buffs activate their timed effect. Other items are prepared instead: they are queued for the next compatible meditation, training, hunt, exploration or battle.
Materials, collectibles, unlock items and other passive resources are not consumed just because you run /item use; if their purpose belongs to crafting or another system, use that system instead. Some special items also route you into the relevant Ninken or progression flow rather than applying a generic effect.
Bulk use is immediate for supported items. Check /item info first when the item is rare, used in crafting or has a reward table you have not reviewed.