- Itsuki Koizumi
within the closed spaces generated by Haruhi. Should the destruction of the Shinjin be left unchecked, the Closed Spaces generated would eventually take reality's place. He often gives his gratitude to Kyon for keeping Haruhi emotionally stable, and in turn, reducing the workload he and his colleagues are required to perform.
Despite the theory he advances in which Haruhi is the equivalent of God, Itsuki says that there are many differing lines of speculation about Haruhi within "The Agency". Itsuki himself does not believe in a singular God, although he reveals that he has colleagues that do. Apparently, most of the questions that he raises about Haruhi's true nature are philosophical in nature and do not necessarily represent his personal beliefs. Itsuki also reveals that the majority of "The Agency" advocates are observing Haruhi instead of doing anything that might provoke her.
Itsuki has also revealed that there are other factions that have not yet been revealed by Haruhi, and that "The Agency" is often in conflict with the other factions backing their respective agents within the SOS Brigade (not to mention various groups which have either not put in an appearance or appear to be enemies). For example, he suspects that Mikuru was chosen by the time-travelers for her beauty and for her ability to seduce Kyon, in order to control the group dynamic within the SOS Brigade, although Itsuki later suggests that he had been lying about this suspicion.
Relationship with other SOS Brigade members
Haruhi recruited Itsuki to the SOS Brigade as the stock "mysterious transfer student" manga character. Itsuki's relationship with Haruhi seems to comprise of him agreeing with her every demands and actions. This has been stated by Kyon himself, who called him Haruhi's 'yes-man'. During the events of the light novel "The Disappearance of Haruhi Suzumiya", in the alternate world created by Yuki where everyone has normal lives and no memory of the SOS Brigade (with the exception of Kyon), Itsuki is a normal transfer student in the elite Kōyōen School (in the original world it is a prestigious girl's school), and claims that he fancies Haruhi, who is his classmate. He is also concerned with Haruhi's well being in the normal reality. It could be due to the fact that Closed Spaces appear when she is upset, but it could also be his genuine concern of her, as he had observed her with "The Agency" during the three years prior to Haruhi meeting Kyon. At one time in the light novel, Itsuki actually snapped at Kyon when he commented that Haruhi only causes trouble for everyone even when she is asleep.
Itsuki seems to be the only one in the SOS Brigade that observes Yuki almost as much as Kyon. Whenever an extraordinary event occurs, he formulates his own theories and tries to enter into discussion with Yuki. Itsuki seems to get along with Mikuru Asahina, however both the organization he belongs to and Mikuru's superior have conflicting ideas regarding Haruhi. Mikuru even personally went to Kyon's class with Tsuruya to ask Kyon to disbelieve Itsuki's theories regarding Haruhi. Itsuki also seems to distrust Mikuru's future self, telling Kyon to be wary of her.
Out of all SOS Brigade's members, Itsuki gets along with Kyon the most. Although Kyon gets annoyed with him most of the time, he often discusses his concerns with him. At times, he even shows Kyon his true self behind the smiling facade, and only Kyon notices when Itsuki is particularly upset or concerned with things. Itsuki constantly tries to get Kyon to realize Kyon's importance to Haruhi, and has expressed amazement and surprise that Kyon does not realize this fact yet. He has told Kyon that he wishes for the time when he could be his friend normally, where his duties as an Esper wouldn't matter. However, when Kyon shrewdly asks him whether he will truly be satisfied with that, he avoids the subject.
References
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