- "It's perfect (whisper)...It is the perfect city. It will not fall to an attack."
- ― Ou Sen to A Kou and his vassals on the city of Gyou (Kingdom)
- Flawless Logical Thinking
- Reason Sense
- Logic Awareness/Detection/Perception/Sense
The user can intuitively know all of the reasons for anything, whether possible or actual. For example, they can sense every reason why someone does not want to do something as well as why a machine does not work.
- Answer Intuition
- Causality Perception
- Detail Intuition
- Enhanced Perception
- Enhanced Response
- Logic Adaptation
- Logic Mandate
- Mathematical Intuition
- Mechanical Intuition
- Pattern Sense
- Photographic Deduction
- Science Intuition
- Enhanced Intelligence
- Enhanced Senses
- Hyper Mind
- Intuitive Aptitude
- Logic Manipulation
- Science Intuition
- Supernatural Senses
- Supernatural Intelligence
- May not have the skills or means to deal with the reasons of a situation.
- May begin to feel the inability to relate to others whom can't keep up with users logical reasoning.
- Might seem pompous to other people who can't understand the logical reasoning.
- The shrewd, detached way of looking at the world, can be unsettling for others.
- Usually unable to shut off faculty.
- Marcus Ayers (Alphas)
- Quantitative Aptitudinal Alphas (Alphas)
- Skylar Adams (Alphas)
- Zoe Adams (Alphas)
- Sherlock Holmes (Batman: The Brave and the Bold)
- Edogawa Ranpo (Bungou Stray Dogs)
- Fyodor Dostoevsky (Bungou Stray Dogs)
- Mori Ougai (Bungou Stray Dogs)
- Osamu Dazai (Bungou Stray Dogs)
- Bruce Wayne/Batman (''DC Comics'')
- Slade Wilson/Deathstroke (''DC Comics'')
- Ou Sen (Kingdom)
- Johan Liebert (Monster)
- Sherlock Holmes (Sherlock Holmes novels)
- Mycroft Holmes (Sherlock Holmes novels)
- Professor Moriarty (Sherlock Holmes novels)
- Rimururu Tempest (That Time I Got Reincarnated As a Slime); via Great Sage
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