Accelerator – The Strongest Level 5 Esper with a Dark Past

Accelerator is the most powerful esper in Academy City, possessing an ability that allows him to manipulate vectors, making him nearly invincible. Initially introduced as a ruthless antagonist, his character undergoes significant development, revealing a tragic past and a path toward redemption. Despite his overwhelming strength, he struggles with his humanity, especially after meeting Last Order, a young girl who becomes his moral anchor.

1. Character Introduction

Full Name: Accelerator (real name unknown)

Nicknames: The Strongest Level 5, The One-Way Road

Series: A Certain Magical Index / A Certain Scientific Accelerator

Affiliation: Academy City, Later GROUP

Occupation: Esper, Former Experiment Subject, Anti-Hero

As the most dangerous esper in Academy City, Accelerator was once a cold-hearted villain who participated in brutal experiments. However, after encountering Last Order, he begins to question his existence and seeks redemption while still maintaining his ruthless nature in battle.

2. Age & Background

Age: 15-16 (in A Certain Magical Index)

Height: 168 cm (5'6")

Race: Human (Esper)

Zodiac Sign: Aries ♈

Born with unparalleled psychic abilities, Accelerator was subjected to harsh experiments to enhance his power. His traumatic past shaped his initial villainous persona, but his journey takes a turn after meeting Last Order, forcing him to rethink his actions.

3. Heroic (or Villainous) Journey

Accelerator’s journey involves:

• Being the primary antagonist in the Sisters Arc.

• Nearly killing Kamijou Touma before suffering a humiliating defeat.

• Protecting Last Order and slowly changing his ways.

• Becoming a key player in the war against Aleister Crowley and Aiwass.

• Accepting his role as a guardian rather than just a destructive force.

4. Iconic Lines & Their Meanings

5. Anime Adaptation & Journey

A Certain Magical Index

• Introduced as the strongest Level 5 esper.

• Fights Kamijou Touma and loses due to Imagine Breaker.

• Becomes Last Order’s protector and starts his redemption arc.

A Certain Scientific Accelerator

• A spin-off series dedicated to his character development.

• Faces dark organizations that threaten Last Order and Academy City.

6. Powers & Abilities

1. Vector Manipulation – Controls all physical vectors, making him nearly untouchable.

2. Superhuman Intelligence – Capable of complex calculations to control his power.

3. Electromagnetic Shielding – Redirects attacks, including bullets and explosions.

4. Black Wings Mode – A powerful transformation after tapping into the Kabbalah Tree of Life.

5. Dark Matter Manipulation (Later Abilities) – Gained after further development of his powers.

7. Relationships & Fate

Key Relationships

• Kamijou Touma – His first true defeat and later, an ally.

• Last Order – The one who brings out his humanity.

• Misaka Mikoto – Indirectly connected due to the Sisters experiments.

• Shiage Hamazura – Another anti-hero who crosses paths with him.

Fate

Accelerator eventually becomes a protector of Academy City, shedding his villainous ways while embracing his darker instincts for the sake of others.

8. Strengths & Weaknesses

✅ Strengths

✔ Absolute Defense – Nearly immune to all attacks.

✔ Brilliant Strategist – Can predict enemy movements instantly.

✔ Unparalleled Power – The strongest esper in Academy City.

❌ Weaknesses

✖ Reliance on Calculations – Needs external assistance after brain damage.

✖ Moral Confusion – Struggles with his identity as a villain or hero.

✖ Emotional Instability – Can be unpredictable when provoked.

9. Recent Releases & Updates

📌 Appears in A Certain Magical Index III and A Certain Scientific Accelerator.

10. Relationship Stories

🔥 Accelerator & Last Order

• His greatest emotional connection, bringing out his kindness.

⚡ Accelerator & Touma

• A rivalry that transforms into mutual respect.

🔪 Accelerator & The Dark Side of Academy City

• His battles against evil organizations shape his role as an anti-hero.

11. Anime Seasons & Episodes

📺 First Appearance: A Certain Magical Index Episode 10

🔥 Major Battles:

• Accelerator vs. Misaka Clones (Season 1, Ep. 10-14)

• Accelerator vs. Touma (Season 1, Ep. 14)

• Accelerator vs. Dark Matter (Season 3, Ep. 17-18)

12. Rating

Overall Rating: ⭐⭐⭐⭐⭐ (9.6/10)

Rating Breakdown:

• Popularity: 9.5/10

• Power Level: 10/10

• Character Development: 9.8/10

• Villain/Anti-Hero Factor: 9.2/10

13. Fun Facts

🎭 His alias Accelerator refers to how he manipulates vectors to control movement.

💀 He originally had no remorse for killing but changes due to Last Order.

🖤 His transformation into Black Wings Mode is one of the most iconic moments in the series.

14. Related Characters

• Kamijou Touma – His first true opponent and eventual ally.

• Misaka Mikoto – Indirectly affected by his past actions.

• Shiage Hamazura – Another anti-hero from the series.

15. The Journey Continues

Accelerator remains one of anime’s most powerful and complex anti-heroes. His journey from villain to protector is filled with brutal battles, internal struggles, and redemption. Whether unleashing destruction or protecting those he cares about, Accelerator’s legacy as the strongest esper in A Certain Magical Index is undeniable.