Ulquiorra Cifer

Ulquiorra Cifer is the coldly nihilistic Espada of Bleach — the fourth-ranked Arrancar, whose detached search for meaning makes him one of the series' most memorable antagonists. Spoilers follow.

Background

Serving Aizen as the calm, calculating Cuatro Espada, Ulquiorra views the world through a lens of emptiness and disbelief in anything he cannot see. His clashes with Ichigo become a meditation on the heart.

Powers & Abilities

Ability	What it does
Segunda Etapa	A rare second release granting overwhelming power
Cero Oscuras	A devastating black energy blast
Regeneration & flight	Rapid healing and effortless aerial combat

Personality

Emotionless and analytical, Ulquiorra fixates on the nature of the heart — a question that quietly humanises him. His final moments are among Bleach's most poignant.

Role in the Story

Ulquiorra is the defining Espada of the Hueco Mundo arc, his duel with Ichigo one of the series' peaks.