Eizō Netsuki/Plot

Background
He joined Border right before it went public, presumably he joined as an executive. at some point Kageura uppercutted him which lead to his demotion.

Introduction Arc
He was first shown with Motokichi Kinuta when deciding Osamu's punishment, as well as what to do about the abnormal gates. He later helped Jin and Osamu by sending a TV Broadcast to civilians alerting them about the small neighbors.

Black Trigger Capture Arc
He once again appeared with Kinuta at the start of the arc and agreed with Kido that they should take away Yūma's Black Trigger. He then appears at the end of the arc and comments that sending Amō is a bad idea as he "doesn't look human" when fighting with his Black Trigger. after that he thinks Jin is crazy for sheltering a Neighbor while using Border's rules as a shield, but quickly changes his mind after Jin offers Fūjin for Yūma's enlistment.

Large-Scale Invasion Arc
He comments on the situation multiple times and explains how Shinoda got to Enedra's location as fast as he did.

Pre-Round 6
He, along with the rest of Border's executives decided whether or not Hyuse should be allowed to join border.

Post-Round 7
He helps out Osamu on figuring out how to diffuse the Hyuse rumor.

A-Rank Squad Evaluations
Netsuki talks about the results along with Karasawa and Kinuta.

Phase 1
Netsuki comments on how the phase has been going