Ulquiorra Cifer/Ulquiorra Schiffer - 4th espada
read as Urukiora Shifā
Espada cuatro (4) in Aizen's army of Arrancar, and is one of the series' central antagonists. He is responsible for much of the conflict currently taking place in the show's continuity, as he is one of Ichigo's principal Arrancar rivals; the other differentially being Grimmjow Jaegerjaquez.
-He is typically slender and melancholic in appearance. He appears somewhat like a cold hearted person. He is believed to be the only arrancar/espada to have a 2nd ressurecion form. he was also able to kill ichigo twice.His cero is green and his cero oscura is black, apparantely this ability is an instantaneous (Ulquiorra used this ability the 2nd time he killed ichigo).Ulquiorra was somewhat defeated by hollow ichigo not ichigo himself since it was hollow ichigo who took over him when ichigo was killed by ulquiorra. the damage hollow ichigo did to ulquiorra was devastating showing almost no mercy and was able to outmatch ulquiorra in just a matter of minutes.but ulquiorra was able to cut hollow ichigo's horn and stop him. after recovering as ichigo was able to live again because of hollow ichigo's power. they continued their fight, but as they were about to fight, ulquiorra started to fade. stating that ichigo won because his body and power could no longer sustain or recover horrific damage hollow ichigo did to him.
-as ulquiorra was fading he talk to orihime stating what the human heart is all about
-for now Ulquiorra was the last arrancar/espada ichigo fought
Ulquiorra Cifer in his 2nd ressurecion form (shown in manga)