Sachiko Motomiya

is a minor character in Ultraman Taiga. She is a researcher at the Engineering Department of Touto University.
==Personality==
Sachiko possesses a personality that is somewhat challenging in terms of communication, yet she is quite outgoing. She holds deep knowledge in various academic fields; however, she often becomes so engrossed in academic theories that she overlooks the dangers around her or ongoing situations.
However, when it comes to significant events or critical moments, Sachiko displays an unwavering determination. She puts in her utmost effort to achieve the goals she envisions, and possesses a fearless attitude in the face of challenges. The underlying reason for these qualities is the influence of her childhood friend, Michiro.
In addition to her academic enthusiasm and perseverance, Sachiko seems to have a special fondness for unicorns. Her clothing and accessories often feature elements of unicorns.
==History==
===Pre-Ultraman Taiga===
During Sachiko's childhood, she had a relatively timid personality, which often made her a target for bullying by her peers. On one occasion, while building sandcastles in the park, she once again fell victim to her classmates' teasing. However, a boy named stepped forward to protect her. From that moment on, a deep friendship was established between them. 
However, during a sandcastle rebuilding session in the park, Michiro informed Sachiko that he would be leaving the town and departed with the mothership's transport. Upon learning his identity as an Alien, Sachiko stood by watching his departure, her heart filled with indescribable emotions.
With Michiro's departure, it seemed like almost the entire town had forgotten his existence, including Sachiko's parents, who believed Michiro was merely her imagination. Nevertheless, Sachiko continued to firmly believe in Michiro's true existence. She held onto her conviction, hoping that one day she could reunite with Michiro.
To realize this belief, Sachiko decided to wholeheartedly dedicate herself to her studies and attempted to develop a device capable of locating Aliens.
===Ultraman Taiga===
In adulthood, Sachiko enrolled in the Engineering Department at Touto University and became a researcher, securing her own dedicated research unit. She caught the attention of the Foreign Affairs Division X, who commissioned her to participate in the development of the Wave Detector "CQ" (Seek You). This device could differentiate between humans and Aliens by measuring the fluctuating life energy waves. Based on her research analysis, Sachiko discovered that life energy waves are usually consistent and can be calculated using specific formulas to determine the coefficient of the wave.
However, Zolin, the leader of the Villain Guild, perceived CQ as a threat to himself and his allies. To halt the development of CQ, he decided to assassinate Sachiko. Upon receiving this information, Sakura requested assistance from EGIS and dispatched bodyguards to protect her.
When Hiroyuki and Homare arrived at Sachiko's laboratory, she explained the fluctuations of life energy and how to discern the life energy of a target through the eigenvalues and eigenvectors of the Hermitian operator. She demonstrated the application of CQ to both individuals and determined that Homare was an Alien through a scan. However, when scanning Hiroyuki, the results continuously displayed him as both human and Alien, which left her perplexed. Observing the friendly interaction between Hiroyuki and Homare, Sachiko was filled with mixed emotions and expressed her wish for Aliens and humans to coexist peacefully.
Unbeknownst to Sachiko, she had become the assassination target of the Alien Bado El-Ray. During a crisis of assassination, she was unexpectedly saved by a mysterious figure named Mystie. Sachiko noticed the symbols on Mystie's hand and was surprised to recognize him as her childhood friend Michiro. However, Mystie didn't acknowledge her and warned her not to approach the River Mouth area for the next few days. Before Sachiko could fully comprehend the situation, Mystie hurriedly departed.
Subsequently, Sachiko visited EGIS's office and through investigation, learned that the backup facility of Eneclone was located precisely at the River Mouth. Due to a drastic drop in Eneclone's stock price caused by previous monster attacks, EGIS deduced from stock data that a shell company named Zolin Corporation was manipulating stock price fluctuations for illicit gains.
To assist EGIS, Sachiko successfully obtained data on the target individual, allowing her to track their movements within a one-kilometer radius. However, her voluntary involvement was rejected by Hiroyuki, who claimed that Sachiko was a protected individual and urged her to avoid danger. Nevertheless, Sachiko persisted, pointing out that CQ was still incomplete and could only be operated by her, with the intent of contributing to the mission.
As the group arrived under the elevated bridge at River Mouth, Sachiko revealed to Hiroyuki, in response to his inquiry, that the man who rescued her was likely her friend from the past, and she explained her own past. However, as Aribunta was summoned and appeared in the city, Hiroyuki swiftly took Sachiko away from the scene. However, during their departure, El-Ray's attack caused Hiroyuki to lose consciousness, leaving Sachiko to be taken hostage. When held hostage by El-Ray and used as leverage against Mystie, Sachiko still insisted on recognizing Mystie, even in the dire situation. She expressed that it was her desire to find him that motivated her dedication to the development of CQ.
Amidst the escalating chaos of the battle, even though Mystie sustained severe injuries while protecting Sachiko, he continued to strive to safeguard her. As the situation became dire, Sakura stepped in to rescue everyone and simultaneously unveiled Mystie's true identity to Sachiko — a spy from the Foreign Affairs Division X.
After the conclusion of the incident, Zolin was arrested by the authorities on charges of manipulating Eneclone's stock prices. Sachiko and Mystie returned to the park where they used to play together during their childhood. Mystie informed Sachiko that the Villain Guild seemed to be conducting secret activities in the United States and that he would be sent undercover again. Despite Sachiko's desire to walk alongside him, Mystie rejected her plea.
However, Mystie promised to return after completing this mission. Although feeling a sense of sadness upon parting with him, as Sachiko left the park, she saw the reconstructed sandcastle, once again evoking her childhood memories.
==Gallery==
===Ultraman Taiga===
Sachiko Motomiya 003.png
Sachiko Motomiya 004.png
Sachiko Motomiya 005.png
Sachiko Motomiya 006.png
Sachiko Motomiya 007.png
Sachiko Motomiya 008.png
Sachiko Motomiya 009.png
Sachiko Motomiya 010.png
Sachiko Motomiya 011.png
Sachiko Motomiya 013.png
Sachiko Motomiya 014.png
Sachiko Motomiya 015.png
==Trivia==
*In the series, Sachiko often steps on people's feet. Director Masayoshi Takesue, who directed episode 20, mentioned that portraying the scenario of people's feet being stepped on naturally was not easy, so he encountered difficulties in filming this aspect.
Category:Ultraman Taiga
Category:Ultraman Taiga Characters
Category:Female Characters
Category:Human Characters
Category:Civilians
Category:Allies
Category:Scientists