Derek Izunami

' "I need someone who's... unconnected. Someone who can do things the Alliance military can't." '

Major Derek Izunami is a human soldier and Jacob Taylor's former commanding officer. He is first introduced in Mass Effect Galaxy when Jacob arrives at the Citadel shortly after a batarian attack on the Arcturian Jade. Izunami has information pointing to another attack, but this time on the Citadel. He claims that the batarians see humans as "usurpers", and that the planned peace agreement between the Council and Jath'Amon would be seen by them as a surrender.

Izunami proposes an investigative mission to the Terminus Systems, but he needs someone who is "unconnected" from the Alliance military, suggesting that unauthorized tactics may be necessary to prevent this attack. He also states that "this mission doesn't come from the Alliance". Jacob accepts the mission and is assigned a ship to travel to the Nemean Abyss, deep in the Terminus Systems. Izunami tells Jacob that he is to meet with a contact at Cartegena Station, in a bar called 'The Fringe'.