Sōgetsu/Axe

The Axe is a configuration of Sōgetsu. By placing the two Sōgetsu's handle tips together and activating Connector, it transform into an enormous battle axe.

Appearance
In this form, Sōgetsu takes the appearance of a two-handed Battle Axe. It has an elongated black handle, with two blades on opposing sides of one end of the handle: a larger one (resembling a crescent/waning moon shape), and a smaller one. The second of the handle where the blades are is wider than the rest, and there are two pink lines running through

Large-Scale Invasion
Konami first uses Sōgetsu's axe form to fight off 2 Rabbits attacking C-Class agents, after Kizaki orders her to defeat them in under 3 minutes. She activates the Connector after realizing the normal Sōgetsu knives didn't do much against them, and quickly defeats them with the axe.

Later, Konami, still using Sōgetsu, tries to attack Hyuse by surprise while he fights Kizaki and Karasuma, but she's intercepted by Viza. She jumps away from Viza, getting bad vibes from his Trigger, and the next time she's seen, the knives are unmerged. In the anime, Kirie activates the connector again to defeat a Rabbit that was attacking the urban area.