Mamoru Shirogane

Biodata

Feature	Details
Name	Mamoru Shirogane (诸星团)
Alias(es)	Ultraman Seven; Seven; Captain
Species/Race	Alien; Ultraman Warrior 180 252
Gender	Male
Affiliation	TPC; Defense Team; “Ultramen of the World, Unite” group chat 1 138
Occupation/Role	Captain of the Defense Team; Ultraman host and combat instructor 1 138
First Appearance	Chapter 1

Background / History

Mamoru Shirogane serves as the Defense Team’s captain. After being injured in a fighter crash, he is rescued by Qi Ming; recognizing Qi Ming’s potential and concern for others, Mamoru offers him a temporary place on the team while helping him search for a way home 3.

His early leadership is marked by sincerity but limited diplomatic tact. He struggles to manage misunderstandings surrounding Qi Ming’s arrival and is explicitly noted to be poor at using “white lies” or flexibility to resolve conflicts between subordinates 3. Even so, he advocates evaluating Qi Ming through time and actions rather than appearances 5.

Mamoru consistently extends his responsibilities beyond battlefield command. He personally visits Akio, a boy convinced that he is an alien, and later seeks Qi Ming’s help in supporting him 21. He also insists that saving even one life is never “a wasted trip” 27.

During the Kendros and Bogar crisis, Mamoru uses Ultra Telekinesis to move an atomic bomb away from the TPC base despite the technique shortening his lifespan 59. He subsequently commits himself to reaching both Hikari, who is consumed by revenge, and Hiroya Fujimiya, who intends to eliminate humanity for Earth’s sake 60.

When he temporarily cannot transform, Mamoru remains active by organizing the Ultraman hosts, analyzing their battle footage, and offering training based on his experience 138. He later becomes a direct mentor to Makoto Aizen and Homura 156 335.

Mamoru is displaced to the Super-Ancient era thirty million years in the past, where he protects civilians, fights Dark Giants, and helps advance human technology over six months 424 436. Qi Ming eventually retrieves him through a Space-Time Vortex after the Dark Emperor’s defeat, returning him to the 21st century 445.

Personality

Mamoru is principled, compassionate, and firmly committed to protecting people regardless of their background. He attempts to see growth even in flawed individuals, opposing Qi Ming’s initial demand to remove the Second Team because he believes people may change 458.

His idealism often puts him at odds with Qi Ming’s more utilitarian decisions. Mamoru is deeply disturbed by Qi Ming’s erasure of Queen Amaterasu’s former personality, viewing it as morally comparable to death despite its practical benefits 252.

He is patient with younger or less experienced fighters. Rather than shaming Homura after a defeat, Mamoru tells him to take pride in having fought evil to the end and promises that those who came before him will face the strongest threats until he grows stronger 335.

Although stern in training and occasionally blunt, Mamoru can reflect on his own conduct. He refrains from reprimanding Makoto Aizen after the latter’s defeat because he recognizes that doing so would be counterproductive 174.

Abilities & Skills

Ultraman Seven Transformation

Mamoru transforms into Ultraman Seven using his Ultra Eye/Ultraman glasses.

• Defeats the Kari Alien after arriving to evacuate civilians during the Rainbow Devil Realm incident 335.
• Transforms to defeat Uroga after Mechanical Seven malfunctions 361.
• Defeats three Golzas after awakening in the Super-Ancient era 424.
• His transformation time on Earth is limited to three minutes 364.

Ultra Telekinesis

Mamoru can manipulate and immobilize targets with Ultra Telekinesis, though the ability severely strains him.

• Moves an atomic bomb away from TPC base, knowingly risking his lifespan 59.
• Freezes Gorougi long enough for Nagi Saijo to attempt a finishing shot 176.
• Freezes Gochigumon so Kyosuke Kamiki can destroy it with Cross Storm 240.
• Can use the power with enough precision to consider disarming an armed human without physically injuring him 364.

Tactical Analysis and Instruction

When unable to fight directly, Mamoru applies his combat experience to improve other Ultraman hosts.

• Creates the “Ultramen of the World, Unite” group chat to improve coordination among Ultraman hosts 138.
• Compiles and critiques battle footage for Makoto Aizen and Hiroya Fujimiya 138.
• Requests that Kyosuke Kamiki record future battles for tactical analysis 138.
• Identifies Makoto’s weaknesses and uses returning iron darts to simulate attacks from multiple directions during training 156.
• Judges Qi Ming’s combat performance as “almost flawless,” stating that even he could not have done better 138.

Command and Negotiation

Mamoru leads Defense Team operations and is capable of making difficult strategic decisions.

• Orders Nagi Saijo to support Melba against an alien fleet because doing so benefits the overall situation 92.
• Persuades the Defense Force to withdraw from Tianhe Biological Research Institute 249.
• Plans for Nagi to succeed him as captain should he fail to return from an operation 308.
• Splits the team into specialized groups during the Totara Island rescue operation 363.

Mechanical Seven Piloting

Mamoru pilots Mechanical Seven during the Uroga incident.

• Studies the operation manual before sortieing and successfully evades Uroga’s opening ray with a barrel roll 361.
• Mechanical Seven’s right leg malfunctions during the battle, allowing Uroga to knock the machine down 361.

Equipment / Weapons / Items

• Ultra Eye / Ultraman glasses — Transformation device used to become Ultraman Seven 335 341.
• Victory Hyper Gun — Standard weapon carried during field operations 341.
• PDI Communicator — Used to contact headquarters and request support 371.
• Jeep — Frequently associated with Mamoru’s harsh training methods and later used in Qi Ming’s training of Homura and Tregear 336.

Relationships

• Qi Ming — Recruited Qi Ming into the Defense Team and sought to cultivate his belonging; they repeatedly clash over ethics but continue to rely on one another as comrades 3 125 252.
• Nagi Saijo — His vice-captain and trusted battlefield partner; Mamoru creates an opening for her against Gorougi and names her as his intended successor 176 308.
• Hikari — Fellow Ultraman host whose revenge-driven actions concern Mamoru; the two later plan to visit the Land of Light to recover their transformation abilities 60 179.
• Makoto Aizen — A younger Ultraman host whom Mamoru critiques and trains intensively in combat 138 156.
• Homura — A younger teammate whom Mamoru mentors with both demanding training and encouragement after failure 335 337.
• Kyosuke Kamiki — A fellow Ultraman host with whom Mamoru coordinates in battle; Mamoru uses Telekinesis to support him against Gochigumon 138 240.
• Queen Amaterasu — Mamoru is appalled by Qi Ming’s alteration of her personality and believes her original self deserved education and another chance 252.
• Annu — Former teammate with whom Mamoru shares a deep relationship and memories of their earlier service together 370.

Story Role / Major Arcs

Qi Ming’s Recruitment

Mamoru is the first Ultraman Qi Ming encounters in this world. He rescues Qi Ming from immediate uncertainty by offering temporary membership in the Defense Team, while also becoming the first person to challenge Qi Ming on how he intends to use his new power 3.

Bogar and Hikari Crisis

Mamoru sacrifices his own lifespan to remove a nuclear threat from TPC base and resolves to prevent Hikari’s vengeance from turning him into the very kind of monster he seeks to destroy 59 60.

Ultraman Host Network

Unable to transform for a period, Mamoru forms a communication network among Ultraman hosts and becomes their analyst and instructor instead of withdrawing from Earth’s defense 138.

Super-Ancient Era

After being sent thirty million years into the past, Mamoru protects ancient humans and works to strengthen their technology while confronting the conflict among giants 424 436. He returns only after Qi Ming defeats the Dark Emperor and opens a path through time 445.

Defense Team Expansion

Mamoru supports integrating Homura into the Defense Team and later opposes immediately expelling the troubled Second Team, preferring to assess whether its members can change 333 458.

Notable Quotes

“You need me, and I need you.” 3

“Who is born an excellent and qualified warrior? You don't need to feel ashamed for losing. Rather, be proud of fighting evil to the very end.” 335

“You are still young, like the rising sun, with limitless possibilities.” 335

“Earth should be protected by human power.” 361

Trivia

• Mamoru is repeatedly associated with Jeeps, from his earlier harsh training of Homura to Qi Ming’s later recreation of the method for Homura and Tregear 334 336.
• He has been knocked unconscious by poachers, Pitt Seijin agents, and disguised Manon Aliens during separate incidents 341 364 371.
• For a reunion gathering with former teammates, he deliberately wears a white suit and an Eleking tie 370.