Miyuki Shirogane IQ

Miyuki Shirogane's IQ is about 140 (range 128 to 150). He is the top student at an elite school and wins the love war through effort and cunning, which is a different sort of genius from Kaguya's.

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Key facts

Estimated IQ
140
Range
128 to 150
Confidence
Medium. A fair amount of evidence, with some gaps.
Franchise
Kaguya-sama: Love Is War. Kaguya-sama: Love Is War (2019 to 2022)

Fan analysis by the LifeScore Editorial Team, reviewed September 2026. How we estimate

What is Miyuki Shirogane's IQ?

Shirogane is the student council president at an elite academy and has stayed first in his class through relentless study, part-time work and planning. He runs the council, helps classmates and plans elaborate schemes to make Kaguya confess first. His mind is real, and the series is clear that much of it is effort. The numbers show a bright and hard-working student, not a prodigy.

High-school student.

How they score

Six ratings out of ten, each based on what is shown on the page or screen. They show how the estimate is built; they are not averaged into it.

DeductionSolving new problems from thin information
7/10
StrategyMulti-step plans that account for other minds
7/10
KnowledgeDepth and breadth of what they know
8/10
InventionBuilding or devising something genuinely new
5/10
AdaptabilityRecovering when the plan breaks
7/10
Reading peopleUnderstanding what other people want and will do
7/10

Scene-by-scene evidence

  1. Always first in the exams

    Strong evidence

    Series-wide

    Shirogane keeps the top spot in the school's exams, ahead of students from richer families with private tutors. Ranking first for years at a competitive school is a strong sign of ability and discipline. The show makes clear that he studies late and hard, so it also tells us how much is effort. We rate it as strong evidence for knowledge and learning.
  2. Running the student council

    Moderate evidence

    Series-wide

    As president, Shirogane organises events, solves disputes and leads a team of different personalities. The role shows planning, communication and fairness. The tasks are ordinary for a school, so it is moderate evidence for strategy beyond the classroom. Presidents of student bodies in fiction are often shown as capable, but Shirogane is shown solving real friction between members, which suggests steady judgement and the ability to handle people calmly under pressure.
  3. Strategies in the love war

    Moderate evidence

    Series-wide

    Every episode has Shirogane building a plan to push Kaguya into confessing first. The plans are creative and layered, and they take account of her habits. They often fail, so the evidence is mixed, but they show a flexible mind that thinks ahead. The plans combine psychology, timing and staging, such as arranging for Kaguya to be in a given place at a given moment. They usually fail, but the failures are often caused by small details, which tells us the design is sound.
  4. Balancing work and study

    Moderate evidence

    Series-wide

    He holds multiple part-time jobs, supports his family and keeps his grades at the top. Managing time under pressure requires organisation and resilience. It is a sign of capability in daily life, and counts as moderate evidence. He gets little sleep and works a number of jobs, and he is still first at school. That level of control over time and attention is a sign of capability beyond raw ability and deserves some credit.
  5. Learning new skills quickly

    Minor evidence

    Various episodes

    When he needs a skill, from dance to a school-festival performance, Shirogane learns it in a short time through practice. It shows a quick, systematic learner. The scenes are comic, so they carry a small weight. He is shown picking up a dance, a performance and other tasks fast, usually because he has a strong reason to. The scenes support a quick learner, though comedy exaggerates the speed.

What holds the number down

  1. Many of his plans fail

    Series-wide

    Kaguya and fate often defeat his schemes. A top-tier strategist would anticipate more. His losses are a major part of the comedy and also of our estimate. Scheming that so often misfires also shows poor prediction of how another mind will respond, which is the central skill of a strategist.
  2. Effort, not effortless brilliance

    Series-wide

    The series repeatedly says he succeeds by working harder than others. That is admirable, but our estimate follows the quality of results rather than the work behind them. A character who says he works harder than others is, by his own account, not the most gifted, so we do not place him in the same band as the prodigies.
  3. Blind spots in feelings

    Series-wide

    Shirogane misreads the signals of Kaguya and others, especially when they concern love. It is a typical limit on insight, and it holds him below the strongest manipulators. He often reads kindness as a threat and misses clear signs of affection, and the comedy depends on that error.

Why 140, and not higher or lower

Knowledge and strategy carry the estimate, along with a very high level of academic performance. Shirogane is quick at planning and at reading Kaguya, but he often misjudges the results of his own plans. Invention is moderate. Sustained effort is part of his profile, and in our method, effort is not penalised, but it does not raise the number beyond what the results show.

IQ estimates for fictional characters are fan analysis: an argument from what the story shows, not a measurement. Read the full method and the standards we hold every profile to.

The debate

Shirogane and Kaguya Shinomiya are an intentional pair of rivals, and the series debates which is smarter. Kaguya scores higher on raw intellect, and Shirogane on determination and ordinary-life resourcefulness. Compared with Kiyotaka Ayanokoji, Shirogane is far more ordinary and more human. We place him a few points under Kaguya and close to Shikamaru Nara on pure planning. The series itself keeps the question open, which is why the gap is small.

Miyuki Shirogane IQ: frequently asked questions

What is Miyuki Shirogane's IQ?

The series does not say. Our estimate is about 140, range 128 to 150, from his exam results, his planning and the limits of his schemes.

Is Shirogane smarter than Kaguya?

Kaguya has the higher estimate in our profiles. Shirogane makes up for it with persistence. Both are shown as top students.

Is Shirogane a genius?

The series says he is a hard worker who has become the best student through effort. He is certainly very bright, but the show makes a point of his struggle.

Are you smarter than Miyuki Shirogane? Miyuki's IQ is about 140. What's yours?

Miyuki's number is an argument from the story. Yours can come from a real test: 25 visual reasoning questions.

Take the IQ test

25 questions · about 12 minutes

Miyuki Shirogane and Kaguya-sama: Love Is War belong to their respective owners. LifeScore is not affiliated with them. This page is independent commentary and analysis, and estimates are our own opinion.