Nibi Nibi no Mi — Onibi Onibi Fruit (Will‑o’‑Wisp Fruit)

Description

The Nibi Nibi no Mi grants its user mastery over onibi, eerie blue flames drawn from folklore. Unlike normal fire, onibi flames do no physical damage; instead, they burn life‑force, stamina, willpower, and mental focus. When the user transforms into onibi, physical attacks pass through them harmlessly, but contact drains the attacker’s energy. The user can launch drifting blue wisps that pursue targets, cling to them, and sap their strength over time. These flames can weaken enemies, induce exhaustion, disrupt concentration, or dull reflexes.
Advanced users can shape onibi into floating lanterns, flame‑constructs, or hovering spheres that act as traps. Because onibi burns the “spirit,” it can bypass armor, barriers, and even some elemental defenses. The fruit excels at attrition, battlefield control, and psychological pressure, making prolonged fights overwhelmingly one‑sided in the user’s favor.