One of the most distinctive features of Blue Archive is its expansive cast of students, each tied to unique academies, story arcs, and character relationships. While dozens of playable students have captured the attention of players, there exists a separate category of characters—NPCs (non-playable characters)—who, despite their lack of battle roles, leave a strong impression through narrative depth, design, and emotional resonance.

This article highlights several notable NPCs who have earned the admiration of the community and arguably deserve to be added to the playable roster. From self-sacrificing leaders to emotionally complex side characters, these students stand as unsung cornerstones of Blue Archive’s rich worldbuilding.

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Seia – The Silent Heart of Arius

Few NPCs have had as profound an impact on the narrative as Seia, the elusive and revered leader of Arius Squad. Soft-spoken, reflective, and tragically burdened by her role, Seia’s story unfolds during the Eden Treaty and Arius District arcs. Though largely confined to flashbacks and visions, her emotional influence on characters like Saori, Misaki, and especially Mika is deeply felt.

Seia represents a maternal presence within Arius—guiding the squad spiritually and morally while carrying immense emotional scars. Her choice to shield her subordinates from the corrupting influence of their environment is a powerful narrative moment. With her gentle demeanor, selflessness, and iconic white-themed design, Seia’s inclusion as a playable Mystic-type Support or Special unit would not only be thematically appropriate, but also highly anticipated by fans.

Why She Deserves to Be Playable:Seia’s legacy has shaped the behavior and trauma of every Arius member. Allowing players to interact with her beyond cutscenes would deepen the emotional arc of Arius as a faction and offer narrative closure that many still seek.

Arata – Trinity’s Forgotten Sentinel

Arata is a quiet, sharp-eyed student from Trinity General School, known for her cryptic presence in the Arius District storyline. Though not part of the playable roster, Arata plays a critical role in navigating the moral ambiguity between Trinity and Arius, and serves as an unofficial link between the two factions.

With a composed demeanor and a deep sense of justice, Arata is one of the few students who seems to grasp the full scope of what transpired within Arius. She operates in secrecy, often working behind the scenes to protect students and preserve balance, even if it puts her at odds with her own superiors. She is observant, resourceful, and willing to go to great lengths to prevent further tragedy.

Arata could easily be introduced as a Mystic-type Striker or Special Support, with skills that reflect her covert background—perhaps stealth mechanics, vision control, or buffs that trigger only under certain conditions.

Why She Deserves to Be Playable:Arata offers a rare glimpse into the moral complexities of Trinity’s elite. Her quiet intelligence and moral conflict make her a compelling figure. Making her playable would enhance the game’s exploration of institutional ethics, responsibility, and the burdens of knowledge.

Lemuen – The Forgotten Genius of Millennium

A former student of Millennium Science School, Lemuen is best known for her brief but emotionally powerful appearance in Blue Archive’s main story. She was once a brilliant and promising researcher under the Valkyrie Police Academy’s custody, but her fate was sealed after being classified as a dangerous anomaly. Lemuen’s story was marked by themes of isolation, misunderstood genius, and tragedy—elements that deeply resonated with players who encountered her during the “Main Story Vol. 3” arc.

Lemuen displayed signs of brilliance far beyond her peers, possessing an instinctual grasp of advanced technology and theoretical constructs. Her abilities, however, came at the cost of stability—both socially and mentally. Despite the dangers she posed, Lemuen was never cruel or malicious; she simply wanted connection and understanding, particularly from Sensei, who was one of the few individuals to show her genuine empathy.

If introduced as a playable unit, Lemuen could take on the role of a Mystic-type Special or Striker who manipulates field conditions, reverses buffs and debuffs, or rewrites terrain effects—mechanics reflective of her unstable, reality-bending intellect.

Why She Deserves to Be Playable: Lemuen represents one of the most tragic and compelling characters in the game’s narrative. Her playability would give players a chance to redeem her fate, explore her inner world further, and utilize a gameplay kit that reflects her untapped potential. Making Lemuen playable would not only enrich Millennium’s roster, but also honor one of the most emotionally impactful NPCs in Blue Archive’s story.

Nagisa – The Shadow Beneath Trinity’s Smile

Among the most enigmatic figures in Blue Archive, Nagisa is a high-ranking student of Trinity General School, and one of the central figures behind the events of the Eden Treaty arc. As the Vice President of the Tea Party, she operates with absolute confidence and cold political calculation. While not officially playable, Nagisa’s influence runs deep—she is both admired and feared for her cunning leadership, her vision of order, and her willingness to employ morally gray methods for what she believes is the greater good.

Nagisa is neither a traditional villain nor a clear ally. She represents a philosophical contrast to Sensei—placing institutional control and strategic supremacy above emotional bonds or personal loyalties. Her confrontations with Mika, Saori, and Sensei display her manipulative skill, emotional detachment, and sharp intellect.

If introduced as a playable unit, Nagisa would likely serve as a Special Support or Tactical Controller, potentially granting unique buffs to Trinity allies, manipulating enemy behavior, or accelerating strategic rotations through battlefield debuffs. Her kit could reflect her role as a planner—slow to act, but decisive and devastating when triggered under the right conditions.

Why She Deserves to Be Playable: Nagisa is one of the most narratively significant NPCs in the entire game. Her inclusion would deepen the Trinity roster, provide players with a morally complex and intellectually formidable unit, and open new storylines that explore her internal conflicts, regrets, and ideological growth. Making her playable would also satisfy long-standing fan interest in a character who defines much of Blue Archive’s political intrigue.

Tachibana Hikari – The Firebrand of Highlander Railroad Academy

Among the unplayable NPCs who have left a lasting impression, Tachibana Hikari stands out as a compelling candidate for future inclusion. As one half of the Tachibana twins from Highlander Railroad Academy, Hikari made her debut during the “Get Set, Go! Joint Firing Exercise” event. Her fiery personality, protective instincts, and strong sense of justice sharply contrast with her more measured sister, Nozomi.

Hikari is brash, quick to act, and unafraid to speak her mind—often clashing with authority but always out of concern for those she protects. In narrative terms, she offers a grounded, emotionally driven counterweight to the often abstract or ideological conflicts that permeate Blue Archive. Her interactions with Nozomi and Sensei reveal layers of insecurity, courage, and sincerity, making her much more than a simple “hot-headed” trope.

As a playable character, Hikari could serve as a Frontline Striker or Defender, utilizing Explosive-type attacks and mechanics built around protective counters or retaliation—possibly shielding allies who fall below a certain HP threshold or gaining strength when her sister is present in the squad. Her skillset could reinforce the strong family bond theme, perhaps granting synergy effects when teamed with Nozomi (if both were made playable).

Why She Deserves to Be Playable: Hikari’s emotionally grounded storytelling, her visual design, and her thematic connection to one of the most underexplored academies in Kivotos make her an excellent candidate for inclusion. Introducing her as a playable unit would provide players with a relatable, brave, and fiercely loyal character who adds both narrative and gameplay depth to the Highlander faction. Her presence would also pave the way for the expansion of Highlander Railroad Academy’s roster and its integration into future main story arcs.

What Playable NPCs Could Add to Blue Archive

The appeal of making NPCs playable lies in more than just novelty. These characters already possess narrative weight, thematic uniqueness, and emotional resonance. By promoting them to playable status, Nexon would be:

• Rewarding long-term players who have followed the story arcs closely
• Expanding underrepresented roles like non-combat tacticians or support operatives
• Offering closure or continuity for emotionally unfinished storylines
• Diversifying school rosters with characters tied to major factions

In a game where story and combat intersect meaningfully, characters like Seia, Tomoe, and Anzu have the potential to enrich both dimensions.

While Blue Archive continues to expand its playable roster with fan-favorite students and seasonal variants, its world is already populated by powerful, complex NPCs who have left a lasting impression. Characters like Seia, Nonomi’s sister, Iroha’s assistant, and Tomoe have already earned their place in the lore—and it’s only natural they take the next step onto the battlefield.

Their inclusion would deepen the emotional and strategic possibilities of the game, bringing long-awaited development to beloved storylines and offering new gameplay mechanics.

To experience Blue Archive’s immersive storytelling and tactical combat at its best, play Blue Archive on PC with BlueStacks. With optimized visuals, smooth performance, and easy multi-instance play, it’s the ideal platform for diving into the lives of these characters—playable or not.