Isamu Nitta

Isamu Niita is a friend of the Hito-Shura in Shin Megami Tensei III: Nocturne. A carefree student; Isamu has a tendency to be cocky. He is also very fond of his teacher, Yuko Takao, his homeroom teacher.

Appearance

 * Shin Megami Tensei III: Nocturne: Human survivor

Shin Megami Tensei III: Nocturne

 * Reason: Musubi



Isamu is a friend to Hito-Shura and Chiaki Tachibana, whom the trio meets up together to visit their homeroom teacher, Yuko Takao. Isamu is first mentioned via calling the Hito-Shura, where he urges the Hito-Shura for being late to the Shinjuku Medical Hospital. Before hanging up, Isamu also reminds the Hito-Shura for bringing the sweater for Yuko Takao, and calls the Hito-Shura as the 'mood maker'.

During the Hito-Shura's visit, Chiaki would then requests the Hito-Shura to help Isamu search for Yuko Takao, as she began to sense a weird atmosphere in the Hospital. The Hito-Shura's first found Isamu, who startled him. Isamu tells the Hito-Shura that Yuko wasn't in her room, and remarks the weird atmosphere and and the lack of staffs in the Hospital, and wonders whether was it cursed. Having no luck find Yuko, Isamu returns with the Hito-Shura. Later, as Chiaki was explaining strange events regarding a Cult, namely Gaea began spreading rumors of the beginning of Conception, Isamu was chastised by Chiaki for interrupting. As she continue reading for the Hito-Shura and Isamu, she found out the Cult has been practicing demonic rituals, and that Shinjuku Medical Hospital is the place they are practicing the demonic rituals.

Isamu would later give the Hito-Shura the ID card to the underground basement to search for Yuko Takao, while he tries to search Yuko in an higher floor. Chiaki takes note of Isamu's proposal and teases him, asking whether is he afraid to search in the basement. Upon finding Yuko Takao, she confessed to the Hito-Shura that in reality, she had led the him, Chiaki and Isamu to the Hospital so that they could survive the Conception. Following the Conception, Isamu was thrown to a white area, he hears a voice telling him to shape his own Reason, establish them and create his own world, and ends up in the now destroyed world, Vortex World.

Isamu would eventually leave the now demon-ridden Medical Hospital, and ends up wandering into the base of the Mantra Clan, Ikebukuro. Upon the Hito-Shura's arrival, Isamu was attacked by Thor, and was knocked aside. Thor would proceed to absorb Isamu's Magatsuchi, rendering him unconscious and locks him, along with the Hito-Shura in the Mantra Prison. Isamu would later inform the Hito-Shura that he ran into the Mantra Clan to know more about Yuko Takao's presence, but failed. Isamu requests the Hito-Shura to find and rescue Yuko, and tells him to not worry about him.

After the events of the battle between the organizations of Nihilo and Mantra, under the effects of Nihilo's weapon, the Nightmare System, the demons of Mantra began to lose their Magatsuchi against their will, and is on the verge of dying. Isamu would take the chance to escape, and meets up with the Hito-Shura. Upon acknowledging Hito-Shura's inability of finding Yuko Takao, and comments that they should head towards Ikebukuro's prison, where the Manikins, including their leader, Futohimi is held captive, hoping to find clues regarding Yuko from Futohimi's prophecy.

Upon wandering into Ikebukuro Prison, however, Isamu was quickly subdued and locked up in the top most floor. Upon the Hito-Shura's rescue, the Manikins and their leader, Futomimi is released. Before leaving, Futomimi tells the Hito-Shura that Isamu is being held captive on the other room, and leaves. By meeting up with Isamu, Isamu would chastise the Hito-Shura's lack of responsibility and capability of saving him and Yuko. Isamu then proceeds to exclaim that living under the vortex world, he to come to a realization: he cannot rely on any one no longer, and, resolves to create a world where the Self is absolute, and no-one can interfere with anyone else, thus creating the Reason of Musubi.



As a large amount to Magatsuchi is needed to establish one's reason, Isamu would later indulge himself into the Amala Network, and began mass collecting the Magatsuchi stored inside. The Magatsuchi effectively changed Isamu into a partial fiend, and gives him the ability to thrive in the Vortex World, and establish his reason. Isamu would later asks the Hito-Shura's thoughts a solitude. Declining everything Isamu says will result in him chastising that the Hito-Shura, in the end, is just wasting him time, being thrown from places to places and being used in the Vortex World.

Isamu would later trap Hijiri in the Amala Network, hoping to lure the Hito-Shura. Isamu exclaims that he intends to use Hijiri as a sacrifice to summon his demonic sponsor, and asks the Hito-Shura to meet him in the Amala Temple. In there, Isamu requests the Hito-Shura to remove the obstacles to allow the large amount of Magatsuchi stored in the Temple to flow again. Isamu tells the Hito-Shura that the will support him mentally, and his voice disappears.

Depending on the Hito-Shura's decisions, Isamu would give different reaction after the Hito-Shura defeats all the obstacles. Should the Hito-Shura accumulates enough reason of Musubi, Isamu would congratulate the Hito-Shura for realizing their goal. Vice-versa, should the Hito-Shura declines the reason of Musubi, Isamu would laugh at the Hito-Shura, asking him whether is he fine being used like that. In either way, Isamu would asks the Hito-Shura to find him. In there, the Hito-Shura encounters Isamu's ceremony of sacrificing Hijiri. Depending on the Hito-Shura's decisions, Isamu would give out different reaction. Should the Hito-Shura accumulates enough reason of Musubi, Isamu would give the Hito-Shura the honor of sacrificing Hijiri to summon his demonic sponsor, Vice-versa, should the Hito-Shura declines the Reason of Musubi, Isamu would chastise the Hito-Shura's foolishness to continue being a 'nice guy'.

Regardless, Isamu completes his ritual, and Hijiri's Magatsuchi was drained dry as a result, dying. Summoning his God, Isamu would fuse with it, leaving the Hito-Shura and begins to climb the Tower of Kagutsuchi.

In the Kagutsuchi Tower, should the Hito-Shura has been supporting the reason of Musubi, Noah will reveal that he, in fact, has been defeated by Baal Avatar not long ago and is on the verge of dying. Noah then tells the Hito-Shura not to worry, and prompts him to continue. However, should the Hito-Shura supports other reasons, or lack of them, Noah would lament that their friendship ends here, and attacks the Hito-Shura. In either event, Isamu dies in the process and Noah dies, screaming in agony.

Reason of Yosuga
In the end, should the Hito-Shura creates a world based on the Reason of Musubi, Isamu would leave the Hito-Shura a letter. In the latter, Isamu wonders here would he end up, would he be reincarnated to this world, or return as a soul. The letter ends with Isamu telling the Hito-Shura that his story has just begun, as encourages the Hito-Shura to create the world.

Neutral Alignment
Should the Hito-Shura reverts the world to state prior the Conception, Isamu, along with Chiaki and Yuko will be reincarnated once more, and returns to the world prior it's Conception. Isamu, along with Chiaki is last seen waiting for the Hito-Shura to visit Yuko Takao together in the world prior it's Conception, with Yuko's last message to the Hito-Shura ending with "Thank you!".