Eru Kusaba

Name: Eru Kusaba

Affiliation: Yaden Academy, First Floor Class A

Gender: Female

Birthday: February 2

Height: 158 cm

Blood Type: O

Likes: Change frequently, depending on the person she is currently in love with

Dislikes: Also change frequently, often shifting with her romantic interests

Ability Name: Electric Mine Index

Voice Actor (CV): Maaya Uchida

Eru Kusaba is the sole girl in First Floor Class A of Yaden Academy, which already makes her stand out in her school environment.

She has short black hair and a gentle, laid-back demeanor that can make her seem approachable and harmless at first glance.

Despite her soft personality on the surface, she embodies a classic “toxic love” or “walking red flag” type of girl.

Among the first-year girls, she is also notably well-endowed, which sometimes adds to the way others perceive and approach her.

Her defining trait is an extremely love-prone nature: she falls for men very easily and very often.

As soon as someone catches her eye, she dives headfirst into obsession, treating each crush like a life-or-death romance.

When Eru takes an interest in someone, she does not just admire them from afar.

She aggressively researches them through searches and direct messages, gathering detailed intel on their preferences, tastes, and ideal type.

After collecting this information, she reshapes herself to perfectly match that person’s ideal woman.

She changes her behavior, style, and even likes and dislikes to become the exact version of “their type” they dreamed of.

However, there is a cruel twist to her love pattern.

The moment her target actually falls for her and reciprocates her feelings, her own interest cools rapidly and she loses romantic attraction.

This cycle of “fall hard, tailor herself perfectly, make them fall, then immediately lose interest” repeats with different men.

It creates a trail of emotional landmines in her wake, fitting neatly with the “mine” imagery in both her personality and her ability’s name.

Because her likes and dislikes constantly shift to mirror whatever her current crush enjoys or hates, even Eru’s “true” preferences are hard to pin down.

This makes her feel mysterious, but also unstable and unpredictable to those around her.

Eru Kusaba’s electric ability is called Electric Mine Index.

This power directly connects to her love life and the men she has ensnared in the past.

Electric Mine Index allows Eru to draw out the powers of any man she has successfully “won over” in a romantic sense.

If she has made a man fall for her, his ability is essentially recorded in her mental “index” for later use.

When she uses an indexed ability, she can manifest it at up to 120% of the original user’s output and precision.

In other words, she does not just copy their power; she temporarily surpasses the original owner’s performance.

Her power has remarkable versatility because she can store multiple men’s abilities in her index.

In combat or during crises, Eru can use more than one borrowed ability, switching or combining them as needed.

Importantly, Electric Mine Index does not exclude other electric users or special ability holders.

Any male ability user she has romantically “conquered” becomes a potential entry in her index, expanding her arsenal every time she gains a new victim.

There is, however, a built-in limitation that keeps her from being completely overpowered.

Electric Mine Index can only copy and use abilities belonging to men, so she cannot borrow powers from women at all.

Even with this restriction, the power is still highly practical and dangerous because it scales with how many men she has emotionally “captured.”

Her tendency to fall in love easily and move from one target to another makes her naturally suited to expanding this library of stolen abilities.

In essence, Eru Kusaba turns her unstable love life into a tactical weapon.

Every broken heart she leaves behind becomes another entry in her Electric Mine Index, making her both emotionally hazardous and combat-wise extremely flexible.