Tetsuya Ida

Tetsuya Ida
Sector	3
Loop	One Loop Ago
Biographical information
Aliases	Mr. Ida (Ryoko Shinonome) Four-eyes (Yuki Takamiya) F8 (Screen name)
Age	Approximately 32
Voice Actor/Actress
Japanese VA	Tatsuhisa Suzuki
English VA	Mick Wingert

This page is about the SIU Director Tetsuya Ida, who enlists Yuki Takamiya to watch over Sakura High. For other characters with the same name, please visit Tetsuya (disambiguation).

For the more spoiler-filled details about the character, go to File No. 043 of the Mystery Files.

Tetsuya Ida (井田 鉄也 Ida Tetsuya) is a non-player character in 13 Sentinels: Aegis Rim.

Profile

SIU Director?

Tetsuya Ida is a mature, dark-haired man with glasses and a neat brown suit. Ida has been appeared in many of Shu Amiguchi's dreams lately, in different time periods and at different ages. Sometime during Ida's life, he served as a substitute teacher at 2064's Sakura High School, and met Ryoko Shinonome. Shinonome fell madly in love with Ida during this time, and was willing to follow his every beck and command. Using his newfound control over her, Ida prepared Shinonome for battle in the Sentinel, and also enlisted the help of her childhood neighbor, Ei Sekigahara. When the Kaiju finally invade in 2065 and the defense squad fails to stop them, Ida, Chihiro Morimura, and Renya Gouto decide to force shift every combatant and navigator to a different time period. Ida ends up in the 1980s, along with Shinonome, and poses as an SIU Director. With Shinonome at his service and many others to manipulate, Ida's actions could change the world for the better- or worse.

Personality

Work in Progress

Appearance

Work in Progress

Relationships

• Miyuki Inaba (Love Interest)
• Yuki Takamiya (Subordinate)
• Ryoko Shinonome (Subordinate/Manipulates her)
• Ei Sekigahara (Subordinate/Manipulates him)

Story

Work in Progress

Events

Click to Expand:

There are 25 Event Archive entries with Tetsuya Ida:

#	Name	Protagonist	Setting	Description
014	My Name is... Tetsuya Ida	Shu Amiguchi	Sector 3/2025: Destroyed Apartment	A memory of a dream Shu Amiguchi had. Tomi Kisaragi stands in shock next to her crumbling apartment building as he attempts to console her. Keitaro Miura and Chihiro Morimura come to rescue them, and he reveals that his name is Tetsuya Ida.
015	A Relentless Nightmare	Juro Kurabe	Sector 2/2065: Destroyed City Center	A memory of a recurring nightmare that Juro Kurabe has. Amidst a burning city, he slaughters students one by one. Just as he's about to fire the final shot at Shu Amiguchi, Chihiro Morimura takes him down.
016	A Wish Entrusted	Shu Amiguchi	Sector 4/1985: Destroyed City Grounds	A memory of a dream Shu Amiguchi had. It's Judgment Day—the day the kaiju have made their assault, breaking through the last line of defense. To put an end to the fight, Chihiro Morimura sacrifices herself to send him back to Sumire Bridge, 16 years into the past.
017	Reunion	Iori Fuyusaka	Sector 1/2089: Kaede River, Sumire Bridge	A memory of a dream Iori Fuyusaka had. As she stands atop the bridge, a boy named Tetsuya Ida warps in on a huge, walking tank. To avoid any further commotion, the two leave the area together.
020	Consciousness and Body	Shu Amiguchi	Sector 1/2100: Shikishima Tech Lab #6	After eight years of research, Tetsuya Ida has succeeded in developing his first android: a robot with the consciousness of Tomi Kisaragi. Kisaragi, newly awakening as an AI, wants to know what happened to her original self. Morimura gravely informs her of her death at the hands of a certain man.
021	No. 16's Statement	Renya Gouto	Sector 1/2100: Shikishima Tech Lab #6	Tomi Kisaragi, recently revived as an android, tells Chihiro Morimura about the deadly explosion at the gate. Realizing that Tetsuya Ida had lied about Juro Izumi's murders, Morimura is crushed by regret.
022	Resurrection	Shu Amiguchi	Sector 1/2100: Shikishima Tech Lab #6	Tetsuya Ida installs 426's data into an android in order to extract information from him. Before long, Tomi Kisaragi runs in, opposing his plan for her to take over the human Kisaragi's body. Ida attempts to delete 426 once more, but right under his nose, 426 takes over the Kisaragi android and makes his escape.
023	All That's Important Is You	Ryoko Shinonome	Sector 1/2100: Shikishima Tech Lab #6	Tetsuya Ida notices that Tomi Kisaragi and 426 had swapped places. Tensions hang in the air as he and Kisaragi discuss her fate. Despite her protests, Ida refuses to go on without her, and draws his own conclusion. If he can restart all this from the beginning, Kisaragi can be revived as a human without ever knowing what happened.
024	Innerlocitor	Renya Gouto	Sector 1/2104: Shikishima Tech Lab #6	As Renya Gouto started working with Chihiro Morimura and the others, they analyzed data from the mainframe and discovered something revelatory: news recordings from 2188, reporting on innerlocitors and memory tampering.
026	Teacher and Student	Ryoko Shinonome	Sector 2/2064: Sakura High, Schoolyard	Ryoko Shinonome, who had been rescued from the initial kaiju attack in 2064, begins to harbor feelings for Tetsuya Ida.
027	Operation Aegis (Event Archive)	Ei Sekigahara	Sector 2/2064: Building Rooftop	On the precipice of the kaiju invasion, Chihiro Morimura and Tetsuya Ida are discussing the fate of the world when they're interrupted by Ei Sekigahara. Rather than confront Morimura directly, Sekigahara asks Ida about Operation Aegis, expressing doubts about the Sentinel system updates he had been asked to do.
029	DD-426 Contamination	Ryoko Shinonome	Sector 2/2064: Shikishima Sentinel Hangar	Tetsuya Ida asks Ryoko Shinonome to install the Sentinel upgrade code DD-426. She does as he asks, but rather than installing it to her own Sentinel No. 14, she installs it to No. 15—Ei Sekigahara's Sentinel.
030	The Sentinel Infection Incident	Ryoko Shinonome	Sector 2/2064: Center of the City	The full-scale invasion of the kaiju has begun. While on defense, the Sentinels start going haywire. Thanks to Chihiro Morimura's quick decision-making, they're able to force-transmit the Sentinels to safety, but not before suffering heavy losses.
032	The Day Mr. Ida Saved Me	Ryoko Shinonome	Sector 4/1984: Kamazumi Police Station	Due to the incident of 2064, Ryoko Shinonome and her Sentinel have been force-transmitted to 1984. While she is under police interrogation, Tetsuya Ida steps in and uses his authority with the Special Investigations Unit to take her away.
041	Hidden Data	Ei Sekigahara	Sector 3/2025: Ruined City	After losing the battle, Ei Sekigahara appears before Tetsuya Ida. Ida promises to take away the effects of DD-426 in exchange for Sekigahara's help in stopping Operation Aegis and bringing about another loop, as well as extracting log data from Miura. Although hesitant, Sekigahara activates Miura.
072	Special Investigations Unit (Event Archive)	Yuki Takamiya	Sector 4/1985: SIU Director's Room	The sukeban girl, Yuki Takamiya, is scouted by the man with glasses from the Special Investigations Unit to infiltrate Sakura High School as a spy. Takamiya rolls her eyes at the outrageous assignment of monitoring students who are suspected of being related to weapons development, but then she sees Natsuno Minami's name on the list.
133	Keep Your Nose Out	Yuki Takamiya	Sector 4/1985: Aoi Ward, Gogyo Street	Yuki Takamiya presses the direct of SIU, Tetsuya Ida, for answers. He tells her not to pursue Natsuno Minami's disappearance, but this only strengthens her resolve.
175	D-Command	Nenji Ogata	Sector 4/1985: Tsutsuji-Bound Local Train	Nenji Ogata gets on the train in pursuit of Ryoko Shinonome. Inside the train, he finds Shinonome and Ei Sekigahara lying on the ground. A mysterious man appears before him and tells him that 15 boys and girls are commanding the Deimos.
213	4th-Gen Sighted	Shu Amiguchi	Sector 4/1985: Aoi Ward, Gogyo Street	On the rooftop of a building, men in black suits and a suspicious man with glasses see Sentinel No. 20. The man then immediately orders the black suits to contact all agencies as well as the U.S. military.
215	Threat	Shu Amiguchi	Sector 4/1985: Ayame Park	Sentinel No. 20 falls near Ayame Park. Shu Amiguchi gets out of the Sentinel, and Yuki Takamiya happens to be nearby. As they talk, a suspicious man approaches them, saying he's with a government agency, and presses Amiguchi to cooperate.
230	Ida vs Amiguchi	Shu Amiguchi	Sector 3/2025: Mainframe	Shu Amiguchi confronts Tetsuya Ida, who's taken Yuki Takamiya hostage. Ida then commands Miyuki Inaba's functions to be shut down. Ryoko Shinonome manipulates the equipment to shift herself, Ida, and Takamiya to Sector 4, leaving Amiguchi and the black suits behind. As Amiguchi and the black suits try to find a way out of the mainframe, Natsuno Minami appears.
231	Goodbye, Mr. Ida	Ryoko Shinonome	Sector 4/1985: Sakura High, Science Room	Along with Tetsuya Ida and Yuki Takamiya, Ryoko Shinonome shifts back to Sakura High School's science room. Pointing the phaser at Ida, the same one she took from him, Shinonome bids him farewell.
280	To the SIU Building	Ei Sekigahara	Sector 4/1985: Aoi Ward, Gogyo Street	Led by Yuki Takamiya, Ei Sekigahara makes his way into the Special Investigation Unit's headquarters.
281	Piercing Ambition	Ei Sekigahara	Sector 4/1985: SIU Director's Room	Ei Sekigahara arrives at the SIU office to find a rather unusual-looking Tetsuya Ida. Ida, who's been waiting for Sekigahara, has taken Iori Fuyusaka hostage.
309	Your Biggest Fan	N/A	Sector 4/1985: Mainframe	Tetsuya Ida restores connection to Sector 4 and speaks with Miyuki Inaba via transmission. As her ship nears the end of communication range, he requests that she sing for him once more.

Gallery

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  Artwork for the March 26, 2020 issue of Famitsu Magazine, by Yukiko Hirai

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  Artwork commemorating the 2nd Anniversary Celebration livestream, by Yukiko Hirai

Etymology

• The name Tetsuya means "iron" (鉄) (tetsu) and "to be, also" (也) (ya).
• Tetsuya's surname Ida means "well, mine shaft, pit" (井) (i) and "field, rice paddy" (田) (ta/da).

Trivia

• His screenname from when he was younger, FE8 (as written in the original Japanese), is another way to spell "Tetsuya". "Iron" (鉄) (tetsu) as an element is written as FE, and (也) (ya) is one reading for the number 8.