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And friends should help each other out, isn't that right? That's why I've decided to fight, too. I've found something that I want to protect.
-- Official Website [1]
Eito Aotsuki (Aotsuki Eito 蒼月 衛人) is a student in the 2025 JRPG The Hundred Line -Last Defense Academy-.
Appearance[]
Eito is a slim teenager who is 184 centimeters tall. He has a pale skin tone with short grey hair that curves upward at the ends. He also has dark blue eyes and silver rimless glasses resting on his face.
He dons a white, long sleeved zipped turtleneck hoodie with the letters "HBDD" and a black graphic on the right side of his hoodie's zipper teeth. He also wears black gloves on both his hands and long white pants tucked into his black sneakers.
The numeral on his Hemoanima uniform's armband is 肆 ("four").
Personality[]
"Takumi's most trusted ally. Eito cares very deeply for his friends and isn't shy about expressing those feelings, corny as they may sound. He's been weak and sickly since he was little, but his impressive intellect might be just what the team needs to guide them through the war safely." - Official Website Description[3]
Eito Aotsuki is the steadfast "voice of reason" among his peers, always approaching situations with a level-headed and rational mindset. [4] He deeply values his friends and isn't afraid to express his feelings, no matter how corny or embarrassing they may sound. His sincerity often catches others off guard, leaving them flustered by his unexpectedly cheesy declarations about friendship and loyalty.
Despite his caring nature, Eito is also incredibly cautious and skeptical. Having been weak and sickly since childhood, he has learned to rely more on his intellect than physical strength, making him a vital strategist within the team. While he fights out of a desire to protect those he cares about, he is not easily fooled—if a friend were to be kidnapped or manipulated, he wouldn't hesitate to question everything they say, refusing to take things at face value.
Although he may seem overly logical at times, Eito's unwavering support and sharp mind make him an irreplaceable ally. His blend of warmth and skepticism helps ground the team, ensuring they move forward not just with passion, but with careful thought as well.
Caution: Major Spoiler about Eito Aotsuki's Character
Despite his warm and rational demeanor, Eito secretly perceives all of humanity as grotesque, hideous creatures—a deeply rooted delusion born from a lifelong cognitive disorder. Their appearance is unbearable to him: their faces distort in his mind, their skin seems malformed, and each person emits an overwhelming, uniquely foul stench that clings to his senses. Their voices scrape against his ears like metal on glass, becoming intolerable with time. Whenever he is near others—especially during prolonged interaction or moments of perceived friendship—he experiences intense, stabbing pain in his chest, as though his body itself is rejecting their presence. He often grips his chest tightly in such moments, not out of sentiment, but to keep himself composed. Beneath his mask of logic and camaraderie lies a singular, consuming goal: the eradication of humankind.
Name Etymology[]
His given name (衛人) uses the kanji 衛, which means "defense," and 人, meaning "person" or "human". His surname (蒼月) is written with the kanji 蒼, meaning "blue," and 月, meaning "moon" or "month." All in all, his name means something like “defender of the blue moon”.
History[]
Early Life[]
Caution: Major Spoiler about Eito Aotsuki's Character
Since he was born, Eito has seen humanity as hideous monsters. This was diagnosed as a unnamed cognitive disorder early in his life. Despite hoping his symptoms would improve, they never did and so Eito isolated himself as he grew up; immersing himself in history books and literature. Upon learning about the history of wars and discrimination by the human race, he decided that all of humanity must be annihilated. It was his duty as the only righteous human. To start this, he murdered his family. He then focused on studying to pursue a career in politics so he could take down the Tokyo Residential Complex from a position of power.
Due to chronic health issues, Eito spent a lot of his life in the hospital. It is implied that he did not have many proper interactions with other people, as within the story he struggles with managing social interactions, and states that it has been a long time since anyone has called him their friend. He did not have anyone he wanted to protect before he came to the Last Defense Academy.
Enrollment in the Last Defense Academy[]
Caution: Major Spoiler about Eito Aotsuki's Character
The First 100 Days
Hearing that the Last Defense Academy was protecting all of humanity made Eito realize that he could finally achieve his life-long dream of destroying the human race. Eito initially planned to kill everyone at the academy as quickly as possible to return to the Tokyo Residential Complex. Realizing that reinforcements would likely be sent, he decided to play the long-game and lead them astray from the shadows.
His first act of deceit was to insist that no one should fight the School Invaders. He murdered Sirei on the night of the second day in the gym to prevent the class from learning the truth about their situation. This was done in a single strike while Sirei was distracted, because of the bombs implanted in the members of the Special Defense Unit. When disposing of Sirei's body outside of the Wall of Fire, he found himself in a perilous situation and would have died had Takumi Sumino not saved him. Eito later killed Hiruko Shizuhara while she was asleep in her room and absorbed her Hemoanima to increase his power.
Eito and Gaku Maruko held a barbeque that was supposed to build the bonds between the members of the team. However, Eito secretly poisoned the food with sleeping pills and used this time to destroy the food supply of the Academy. While exploring for more supplies, Takumi was knocked out and left for dead by Eito. When Takumi returned, along with the members of the Second-to-Last Defense Academy, Eito knew that he was his "true nemesis."
While the fake Moko Mojiro was attacking the school, Eito released Eva who was currently held prisoner in the courtyard of the Academy. On the mission to rescue Ima Tsukumo at the Invader's base, he was the first to find Eva, currently being held captive. He made use of this opportunity and absorbed her Hemoanima, suggesting that it was instead her being executed for managing to be captured by the enemy.
After overhearing that Nozomi Kirifuji had a secret about her past to share with Takumi, he decided to eavesdrop on them by hiding under Takumi's bed that evening. He heard everything about how Nozomi was at the Academy of her own free will and decided to leak the information in order to turn the class against her. This quickly spread, with no one able to track the source of the information and greatly damaging Nozomi's reputation within the Academy.
Relationships[]
Sirei[]
Eito is initially the student most in opposition to Sirei, as he doubts everything he tells them, seeing no reason to believe that anything he says is true. His stubbornness is one of the key factors in making Sirei change his strategy from withholding important information until everyone joins the fight, to promising to reveal it if he can get permission from his higher ups if it means that it'll make it more likely that the others will join the fight. After he sees that the outside world is ruins like Sirei said, and so there is at least some truth to his words, Eito is more willing to join the fight. However, he makes it clear that he still doesn't fully trust what Sirei says.
Takumi Sumino[]
Eito is Takumi's most trusted ally.[4] From the moment they first met, there was an odd sense of immediate acceptance. While he often plays the role of the rational thinker, he appears to harbors genuine concern for Takumi’s tendency to throw himself into danger. Although Eito is known for his intelligence, he is far from weak in combat. Wielding his Hemoanima, a formidable scythe, he proves himself to be a powerful fighter when the situation demands it. His mix of sharp intellect and skill in battle makes him a reliable ally, standing firmly by Takumi’s side as both a strategist and a warrior.
Hiruko Shizuhara[]
Initially, Hiruko and Eito had very different ideas of what the correct path forward upon being placed in their crazy situation was, with Hiruko aligning herself a lot with Sirei's aims, wanting to stay and fight, whilst Eito was suspicious of everything he said, thinking that trying to find their way back home was the best option. This culminates in them clashing on Day 5, where Hiruko manipulates the cowardice of the non-fighting students to shut down Eito's belief that his plan was what everyone wanted, dampening his spirits. When he goes off on his own, she sees him as disposable due to him not being a part of the fighting force, and thus initially forbids Takumi from searching for him. Hiruko does not actively comment on Eito's decision to join the fight on Day 7, but it can be assumed that she is glad for it, and has a better opinion of him now.
Trivia[]
- His specialist skill is Special Fortunetelling. This allows him to randomly gain either +1 attack, +1 armour, or fatigue each time he makes a move. [4]
- His preferred weapon is a scythe.[5]
- His Special Attack is called Righteous Punishment.
- There is a general theming of justice across his attack names, as his three regular attacks are called 'Judge', 'Jury' and 'Executioner'.[6]
- The kanji behind him in his Report Card says 幸運 (kouun), meaning "good luck".
- In his concept art, the text on his clothing can be seen, which is written in Luxembourgish. Translating this is very spoiler heavy however! [7]
- Takumi and Eito have confirmed ages, both being 17, as well as being third-years, making them seniors in high school. Their ages are only explicitly stated in the Japanese version of the game. [8]
- Eito's glasses are not in the right prescription as an additional fact, perhaps this has something in regards to his preferences which is why he continues wearing such glasses.
References[]
- ↑ https://hundred-line.com/en/character/?p=eito
- ↑ https://hundred-line.com/en/character/?p=eito
- ↑ https://hundred-line.com/en/character/?p=eito
- ↑ 4.0 4.1 4.2 https://hundred-line.com/en/character/?p=eito
- ↑ Eito in battle.
- ↑ https://www.youtube.com/watch?v=-7cEYES3LFc
- ↑ Eito Aotsuki/Gallery
- ↑ https://www.youtube.com/live/47ccGTNQpns?si=2ODctnMeZwiGBMm7&t=2711
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