Saigyoku Nijigasumi

is a technique of Maki Ichinose's Zanpakutō, Nijigasumi.

Description
While Ichinose's Reiatsu intensifies, giving his attacks more power, a multitude of twinkling lights appear around his opponent before expanding and coalescing to form a sphere of light that expands outward in a huge radius, flattening anything in its path. Following this, the sphere begins contracting and exerting immense pressure on the opponent trapped within using its compressed light, ultimately crushing them by compressing into a tiny, high-density beam. When caught within this technique, Kenpachi Zaraki was unable to even slightly damage it with a full-force swing of his Zanpakutō and was forced to unleash the full power of his Reiatsu by removing his eyepatch in order to break free.